 
IBM's Official OS/2 Warp FAQs 

At last, the ultimate answer book for every OS/2 Warp 
user. Direct from IBM's Service Hotline, OS/2 Warp FAQs 
is a comprehensive question-and-answer guide that 
helps you optimize your system and save time by 
putting the answers to all your questions right at your 
fingertips. The CD-ROM that comes with the book includes 
FAQs from the book in an easy-to-search format, plus 
hard-to-find device drivers for connecting to peripherals,
such as printers.
 
  
          IBM's Official OS/2 Warp FAQs
           (frequently asked questions)
                       by
                  Michael Kaply
                       and
                Timothy F. Sipples
        Bradley Kliewer, Consulting Editor
                An IBM Press Book
      Published by IDG Books Worldwide, Inc.
               ISBN:  1-56884-472-7
       IBM Publication Number:  SR28-5882
 
The following are excerpts from this book.
These selections were chosen because they deal with issues that
frequently arise during installation.  The remainder of the book
however deals with all aspects of using OS/2 Warp, from the basics to
using advanced features.  It is therefore highly recommended for all
OS/2 Warp users.

__________________________________________________________________________
    
1. Which "flavor" of OS/2 Warp is right for me? 
 
 There are many different "flavors" of OS/2 Warp. Some 
 choices are optional; some (for example, media type) 
 are not. They break down as follows: 

      Media type (CD-ROM or 3-inch diskettes). Choose 
       the correct media for your needs. We recommend 
       the CD-ROM version, because it installs more 
       quickly and includes extra multimedia files (sound, 
       video, and Kodak PhotoCD) not included with the 
       diskette version. Note that OS/2 Warp Connect (see 
       below) is only available on CD-ROM. 

      With Windows code or without. OS/2 Warp ships 
       with either a special copy of Windows (called 
       WIN-OS/2) or without. The standard OS/2 Warp 
       package (with red-colored sides on the box) uses 
       a copy of Windows or Windows for Workgroups, 
       which has already been installed on your hard disk 
       to run Windows programs. If you don't have 
       Windows, you can't run Windows applications with 
       the "red box" of OS/2 Warp. However, DOS and 
       OS/2 applications will run fine. OS/2 Warp with 
       WIN-OS/2 (blue-sided box) includes a complete 
       copy of Windows. 

       In short, if you already have Windows, choose 
       "red." If you don't have Windows, and do not want 
       to run Windows programs, choose "red." If you 
       don't have Windows, but want to run Windows 
       applications, choose "blue." 

      With "Connect" network applications or without. If 
       you have a network card, and need access to your 
       office network, OS/2 Warp Connect (with its 
       bundled networking software) is generally the best 
       choice. OS/2 Warp Connect is available in both 
       "red" and "blue" versions, but only on CD-ROM. 
  
2. What does OS/2 Warp Connect include? 
 
 OS/2 Warp Connect includes everything now found in 
 OS/2 Warp plus: 

      Multiprotocol Transport Services (MPTS) 
      IBM OS/2 Peer Version 1 
      IBM OS/2 LAN Requester Version 4 
      Novell NetWare requester Version 2.11 
      IBM LAN Distance client Version 1.11 
      IBM TCP/IP Version 3 
      Network SignON Coordinator (client/server) 
      First Failure Support Technology/2 
      Lotus Notes Express "Plus 2" 
      AskPSP 
  
  All of these products except Notes Express and AskPSP 
  are installed using a single, unified installation program, 
  which is part of the main OS/2 Warp installation routine. 
  There are also options to install networking software 
  over an existing OS/2 Warp installation, to install only 
  base OS/2 Warp (without networking software), and to 
  use individual installation programs provided with each 
  separate networking component. 


3. Will OS/2 Warp run all of my DOS, Windows, and OS/2 applications?
 
 OS/2 Warp runs three major families of software: DOS, 
 Windows, and OS/2. The good news is that the vast 
 majority of applications (more than any other operating 
 system for the PC) run just fine inside OS/2 Warp. 
 When you install OS/2 Warp, it sets up icons on the 
 desktop for all the applications it recognizes on your 
 system. If OS/2 Warp detects DOS (with or without 
 Windows) on your system when it is being installed, it 
 preserves DOS and lets you switch between plain DOS 
 and OS/2 Warp any time you want. However, there are 
 some limitations on the kinds of DOS applications you 
 can run inside OS/2 Warp. The limitations are as 
 follows: 

      VCPI. Applications that require the now-dated 
       Virtual Control Program Interface (VCPI) under DOS 
       will not run inside OS/2 Warp. VCPI was an early 
       way for DOS applications to use more than 640K of 
       memory. VCPI is all but incompatible with both 
       Windows and OS/2 Warp, so most applications 
       written to use VCPI have been modified to work 
       with DPMI (DOS Protected Mode Interface) memory, 
       which is supported by OS/2 Warp. The DOS version 
       (there is an OS/2 version) of Lotus 1-2-3 Release 
       3.0 is an example of a VCPI application. 

      Programs that use their own proprietary memory 
       extenders. These applications are just like those 
       that use VCPI and will not operate under either 
       plain Windows or OS/2 Warp. PC games are the 
       main culprits (such as some of the Ultima series of 
       games). Here too vendors are making changes and 
       modifications to allow such applications to run 
       inside OS/2 Warp. 

      Applications (mostly utilities) that try to manipulate 
       the hard disk directly, for example, the Undelete 
       feature in Norton Utilities. There are OS/2-based 
       equivalents and replacements to utilities like 
       Norton's Undelete. 

      Timing-sensitive applications. Because OS/2 Warp 
       always retains control over your PC, some 
       applications that are timing sensitive could be 
       disrupted. Most of these problems can be reduced 
       or even eliminated using various priority settings 
       available inside OS/2 Warp. Examples of such 
       programs include MIDI (Musical Instrument Digital 
       Interface) sequencers and some games. 

      DOS programming debuggers. For development tools 
       using a DOS-based debugger, certain operations are 
       not allowed. Many OS/2-based debuggers are 
       available, even for debugging DOS applications. 
  
  Although not usually required, we recommend replacing 
  the following types of applications if you are moving 
  from DOS (with or without Windows) to OS/2 Warp: 

      Backup. OS/2-based backup software not only 
       works faster and operates in the background, it 
       will also capture special OS/2 Warp features (like 
       long filenames and extended attributes), which 
       would be missed with DOS-based software. 

      Networking. If you use DOS-based networking 
       software, you'll get much better results switching 
       to OS/2-based equivalents (or using OS/2 Warp 
       Connect, with its built-in networking software). 
       Note that you don't have to replace DOS and 
       Windows applications that use networking features. 
       For example, if you are using the Novell NetWare 
       client for DOS with Lotus Notes for Windows, you 
       can continue to run Lotus Notes for Windows over 
       the NetWare software for OS/2 Warp (included 
       with OS/2 Warp Connect). You can also run the 
       OS/2 Warp version of Lotus Notes. 
  
  Windows is essentially a DOS application (although it is 
  a big, complicated one). So any generalized restrictions 
  noted above will apply to Windows applications. In 
  addition, the following restriction applies: 

      Win32s. OS/2 Warp supports the Win32s Version 1.15 
       programming interface. Very few Windows 
       applications require Win32s at all. However, a few 
       of those may require a version of Win32s later 
       than Version 1.15 and consequently may not 
       operate inside OS/2 Warp at this time. (A beta 
       release of Win32s 1.25 is now available.) 
  

4. What changes does OS/2 Warp make to Windows? 
 
 In order to run Windows under OS/2 Warp, OS/2 Warp 
 modifies files in your WINDOWS subdirectory. Here is a 
 quick rundown of the major changes it makes: 

      Modifies INI files to add new printer ports as well 
       as display drivers and OS/2 Warp specific keywords 

      Creates a new Windows start program, 
       WINOS2.COM. This is also copied to WIN.COM. 
       Renames the original WIN.COM to WINDOS.COM. 
       When you use Dual Boot, the files are renamed as 
       appropriate. 

      Installs Adobe Type Manager Version 2.5 for 
       Windows. 

      Adds a number of files to enable the OS/2 Warp 
       compatibility. 

      Adds display drivers. 

      Modifies CONTROL.INF and SETUP.INF. 
  

5. What hardware do I need to run OS/2 Warp? 
 
 OS/2 Warp requires the following: 

      An IBM or IBM compatible PC with a 386 (or higher) 
       processor 

      At least 4MB of RAM (6MB or more is 
       recommended) 

      Sufficient free hard disk space (at least 25MB) 
       depending on the features selected 

      A graphical video display (VGA or better is 
       strongly recommended) 

      A mouse or similar pointer device such as the 
       Trackpoint found on IBM ThinkPads (although OS/2 
       Warp can be operated using just a keyboard, a 
       mouse is almost essential) 
  
  There are many optional devices that OS/2 Warp can 
  take advantage of, but they are not required. Examples 
  include printers, network adapter cards, CD-ROM drives, 
  audio or other multimedia adapter cards, modems, and 
  PCMCIA cards (normally found on notebook computers). 

  OS/2 Warp supports all major bus designs found in PCs, 
  including Micro Channel (MCA), AT bus (ISA), PCMCIA 
  (now known as PC Card), VESA LocalBus (VLB), PCI, 
  and EISA. 

  All major types of hard disk drives (MFM, RLL, ESDI, IDE, 
  Enhanced IDE, and SCSI) work with OS/2 Warp. Also, 
  OS/2 Warp can use Advanced Power Management (APM) 
  if your PC supports it. So-called "green" PCs (like the 
  IBM PS/2E), which meet the U.S. Environmental 
  Protection Agency EnergyStar standards, and notebook 
  computers usually provide standard APM support. 

  OS/2 Warp Connect is designed to work with a wide 
  variety of network adapter cards. However, a network 
  card is not required. The IBM LAN Distance feature in 
  OS/2 Warp Connect works with modems, for example, 
  to provide network connections without a network 
  card. Also, OS/2 Warp Connect provides the capability 
  to connect with other OS/2 Warp Connect PCs using an 
  inexpensive LapLink-type cable attached to each 
  system's parallel printer ports. Furthermore, a free 
  downloadable update for OS/2 Warp Connect, available 
  from IBM, supports the infrared transmitter/receiver 
  devices (IRDs) found in such systems as the IBM 
  ThinkPad models 701, 755CE, 755CSE, 755CX, 755CDV, 
  755CV, and 755CD. 


6. How much disk space do I need to install OS/2 Warp? 
 
 This question has been asked a million times and the 
 answer is always, "It depends." That answer is the 
 correct one, but what does it depend on? Well, it 
 depends on how much of OS/2 Warp you install and 
 which version of OS/2 Warp you install. During the OS/2 
 Warp installation process, you can select which pieces 
 get installed. The selections you make determine how 
 much space OS/2 Warp takes. 

 OS/2 Warp and OS/2 Warp with WIN-OS/2 have two 
 very different sets of space requirements. Because OS/2 
 Warp uses your existing Windows, it is not necessary to 
 add the approximately seven megabytes required for 
 Windows. This means OS/2 Warp requires less disk 
 space than OS/2 Warp with WIN-OS/2. 

 The best way to determine how much space OS/2 Warp 
 requires is to first look at the bare minimum installation 
 (which doesn't even include DOS support) and then look 
 at a full installation of OS/2 Warp with WIN-OS/2. Table 
 2-1 lists space requirements for various versions of 
 OS/2. Note that all these numbers are estimates and 
 that your mileage may vary because of differences in 
 hardware. Also, OS/2 Warp uses a file called 
 SWAPPER.DAT for virtual memory (more on that later). 
 We do not include that file in our calculations for space 
 requirements, because its size can vary depending on 
 your system. (Besides the SWAPPER.DAT file, you 
 should also allow space for networking features if you 
 have OS/2 Warp Connect.) 

  Scenario                                          Space 

  Base OS/2 Warp                                    23.5 
                                                    megabytes 

  Base OS/2 Warp with DOS                           24.9 
                                                    megabytes 

  Full OS/2 Warp with DOS and WIN-OS/2              47.2 
                                                    megabytes 


7. Should I use Easy Installation or Advanced Installation? 
 
 If you are not sure which one you should choose, the 
 answer is probably Easy Installation, which installs OS/2 
 Warp on your C drive over DOS (see Figure 2-1). It 
 does not delete DOS or format your hard drive; it uses 
 a facility called Dual Boot, which allows you to get 
 back to DOS at any time. 
 
 Advanced Installation allows you to make the following 
 changes: 

      Install OS/2 Warp on a drive other than C. 

      Format your drive as HPFS. 

      Use the Boot Manager to select an operating 
       system at boot (start-up). 
  
     See FAQ 10, "What is Boot Manager?" 

     See FAQ 8, "What is HPFS?" 

8. What is HPFS? 
 
 HPFS stands for high performance file system. Like FAT, 
 it is a system for keeping track of files. It may be used 
 optionally instead of, or alongside, the standard 
 DOS-style FAT (File Allocation Table) file system. 

 HPFS allows filenames of up to 254 characters including 
 the path, greatly exceeding the "8 dot 3" limit of DOS. 
 It also allows contiguous storage of extended attributes 
 (without the EA DATA. SF file used by FAT). HPFS 
 provides resistance to file fragmentation, improved 
 media error handling, smaller cluster size, support for 
 larger file storage devices (up to 512 GB), and speedier 
 disk operation, particularly on large hard disks and on 
 systems with more than 6MB of RAM. 

 In short, HPFS is a more efficient way of storing files 
 on a hard disk and we recommend its use whenever it 
 is practical. 


9. What is Dual Boot? 
 
 Dual Boot is a utility that allows OS/2 Warp and DOS to 
 exist on the same drive. The Dual Boot icon in your
 OS/2 Warp Command Prompts folder lets you switch 
 from OS/2 Warp to plain DOS the BOOT /OS2 command 
 lets you switch back to OS/2 Warp. 

 Note that the BOOT program is located in the \OS2 
 directory, so you have to type C:\OS2\BOOT /OS2 so 
 that DOS can find the program. 

10. What is Boot Manager? 
 
 Boot Manager is a utility that allows you to have 
 multiple operating systems on your hard drive (see 
 Figure 2-2). If the operating system you install supports 
 installation on a drive other than C (such as OS/2), you 
 can add the operating system to the menu that appears 
 when you boot your machine. Then you can pick which 
 operating system to start when you boot your 
 computer. 
 
 
11. Do I have to partition when I install OS/2 Warp? 
 
 Well, you don't have to do anything. If you don't 
 understand exactly what partitioning is or have any 
 idea why you should partition, then don't. We make no 
 recommendation one way or the other. OS/2 Warp will 
 be more than happy to install on your existing system 
 -- if there's room in the existing partition, that is. 

12. Do I have to format to install OS/2 Warp? 
 
 Not unless you have a beta version of OS/2 Warp. If 
 you're installing OS/2 Warp over a beta version, you 
 will have to format. 

 Wondering what a beta version is? Before software 
 companies can release software, they have to test it 
 thoroughly. A lot of this testing is done internally, but 
 companies frequently enlist the help of the general 
 public. IBM released two beta versions of OS/2 Warp. 
 Although these versions have many of the same 
 features and functions as the final version of OS/2 
 Warp, they still have some bugs and problems. It's a 
 good idea to replace the beta versions with the most 
 recent version. 

13. Can I use disk compression with OS/2 Warp? 
 
 Disk compression helps create more space on your hard 
 disk. There are a number of companies that produce 
 disk compression utilities for OS/2 Warp, including Stac 
 Electronics, Proportional Software, and Carbon Based 
 Software. Here are some features of each: 

      Stacker from Stac Electronics. This utility 
       supports OS/2 Warp and DOS. It can decompress 
       drives that have been compressed using other 
       mechanisms, such as Double Space or SuperStor 
       and convert them to Stacker. It does not support 
       HPFS. Note that if Stacker 1.1 does not work 
       properly, you can get a fix from Stac Electronics. 

      DCF/2 from Proportional Software. This utility 
       supports HPFS and the capacity to vary the size of 
       the compressed disks to fit your needs (known as 
       dynamic disks). 

      ZipStream from Carbon Based Software. This 
       utility uses an installable file system to allow 
       file-by-file compression. (An installable file system 
       simplifies adding new file systems, such as HPFS 
       and CDFS, to your existing system.) 
  
14. Can I install OS/2 Warp over previous versions of 
       OS/2? of Windows? of DOS? 
 
 OS/2 Warp with WIN-OS/2 can be installed over any 
 version of OS/2, except OS/2 2.1 for Windows. If you're 
 using OS/2 2.1 for Windows, you must use OS/2 Warp 
 (without Windows). 

 When you install OS/2 Warp over a previous version, it 
 will automatically use all of your prior settings. 
 Unfortunately, in some cases you won't get the new 
 Scheme Palette, which is used to customize colors, in 
 the Workplace Shell. You can run the utility SCHEME 
 from an OS/2 Warp command line to get a copy of the 
 new Scheme Palette. 

 All versions of OS/2 Warp can be installed over 
 Windows and/or DOS. OS/2 Warp will use your existing 
 Windows. In the case of OS/2 Warp with WIN-OS/2, OS/2 
 Warp will read your current configuration to customize 
 the Program Manager, but it will use its own WIN-OS/2 
 support. Installing OS/2 Warp over DOS enables Dual 
 Boot, which allows you to boot back to DOS at any 
 time. 

15. Can I install Windows after I install OS/2 Warp? 
 
 Yes. You cannot, however, use the regular Windows 
 Setup program under OS/2 Warp. You must boot to DOS, 
 install Windows, and then boot back to OS/2 Warp. 
 Once in OS/2 Warp, use Selective Install to enable 
 Windows under OS/2 Warp. 

16. Why does the OS/2 Warp installation require 
       Windows diskettes?
 
 The OS/2 Warp installation needs the Windows diskettes 
 to make sure it is using the proper font files and 
 display drivers. It is possible that another application 
 has modified these files, so OS/2 Warp uses the original 
 files to prevent incompatibilities. 

 Note:  OS/2 Warp with WIN-OS/2 does not require 
 Windows diskettes. 

 See FAQ 17, "How do I install OS/2 Warp if I didn't 
 get Windows diskettes with my PC?" 

17. How do I install OS/2 Warp if I didn't get Windows 
       diskettes with my PC? 
 
 There are two ways around this problem: 

 Sometimes, when a system is preloaded with Windows, 
 it has directories on the hard drive that contain images 
 of the Windows diskettes. During the OS/2 Warp 
 installation, when asked for a Windows diskette, type in 
 the directory on your hard drive where the diskette 
 image is located. Usually, this is DISKX, where X is the 
 number of the diskette. For example, if OS/2 Warp asks 
 for Windows diskette 5, type C:\DISK5 for the location 
 of the diskette. 

 On other machines, a directory called DRIVERS is 
 created within the WINDOWS subdirectory that contains 
 all the drivers and fonts that OS/2 Warp needs to 
 configure Windows so that it works with OS/2 Warp. If 
 you have this directory, you can edit the SETUP.INF file 
 in your \WINDOWS\SYSTEM subdirectory by changing the 
 following lines: 

 1 =. ,"Microsoft Windows 3.1 Disk #1",disk1
 2 =. ,"Microsoft Windows 3.1 Disk #2",disk2
 3 =. ,"Microsoft Windows 3.1 Disk #3",disk3
 4 =. ,"Microsoft Windows 3.1 Disk #4",disk4
 5 =. ,"Microsoft Windows 3.1 Disk #5",disk5
 6 =. ,"Microsoft Windows 3.1 Disk #6",disk6
 
 to 

 1 =x:\windows\drivers,"Microsoft Windows 3.1 Disk #1",disk1
 2 =x:\windows\drivers,"Microsoft Windows 3.1 Disk #2",disk2
 3 =x:\windows\drivers,"Microsoft Windows 3.1 Disk #3",disk3
 4 =x:\windows\drivers,"Microsoft Windows 3.1 Disk #4",disk4
 5 =x:\windows\drivers,"Microsoft Windows 3.1 Disk #5",disk5
 6 =x:\windows\drivers,"Microsoft Windows 3.1 Disk #6",disk6
 
 where x is the drive on which Windows is installed. 
 These lines are located in the [disks] section of the 
 SETUP.INF file. 

 If you want to format your hard drive, or the Windows 
 images are not on your hard drive, you should contact 
 the manufacturer of your computer to obtain Windows 
 diskettes. 

18. Can I start OS/2 Warp from a diskette? 
 
 Unlike DOS, you cannot start OS/2 Warp from a single 
 diskette, but you can start it from multiple diskettes. In 
 the System Setup folder, there is a utility called 
 "Create Utility Diskettes," which will create a set of 
 diskettes that can be used to start OS/2 Warp from 
 your diskette drive rather than your hard drive. (Figure 
 10-5 shows the dialog box that appears when you 
 double-click on Create Utility Diskettes.) Use these 
 diskettes when you need to troubleshoot your system 
 or perform maintenance that requires that OS/2 Warp is 
 not started from your hard drive. This utility requires 
 three 1.44MB diskettes or one 2.88MB diskette. 
 
  Another way to start OS/2 Warp from diskettes is to 
  follow the same process as when you installed OS/2 
  Warp. Start your PC with the OS/2 Warp installation 
  disk in drive A. After you switch diskettes when 
  prompted, and after the first install screen appears, you 
  can press F3 and you will be taken to a command 
  prompt. 

19. How do I edit my CONFIG.SYS file?
 
 OS/2 Warp includes two utilities to edit your CONFIG.SYS 
 -- the System Editor and TEDIT. TEDIT is a 
 non-Presentation Manager editor that can be used from 
 the utility disks or from a full screen. The System 
 Editor can be started at any time by typing E at an 
 OS/2 Window or full screen. You can also start the 
 System Editor by double-clicking on its icon, which is in 
 the Productivity folder. 

 Before you edit the CONFIG.SYS file, you should make a 
 backup copy of CONFIG.SYS on diskette or on the hard 
 disk. For example, you could open an OS/2 Window 
 from the command prompts folder and type the 
 following sequence: 

 COPY CONFIG.SYS CONFIG.BK1
 E CONFIG.SYS
 
 By changing the final digit, you can keep multiple 
 backups for later comparison or recovery. With a 
 backup available, if you should happen to make the 
 system unbootable because you improperly changed 
 critical CONFIG.SYS statements, recovery becomes rather 
 simple. 

 If you need to recover the original CONFIG.SYS, reboot 
 the system and watch for a white box followed by 
 OS/2 to appear on the monitor's upper left corner. At 
 that time, press Alt+F1. Instead of bringing up the 
 desktop, OS/2 Warp will present a screen of alternate 
 boot configurations similar to Figure 7- 2. 
 
 Type C to boot to a plain, full-screen command window 
 with a [C:\] prompt. OS2 Warp will use the CONFIG.SYS 
 file from your original installation, so it should boot 
 even if your current CONFIG.SYS is corrupt. At the [C:\] 
 prompt, type: 

  COPY CONFIG.BK1 CONFIG.SYS
  
 to restore the previous version of CONFIG.SYS and 
 reboot. 

  CAUTION:
  Do not edit your CONFIG.SYS unless absolutely 
  necessary. Also, do not use the Enhanced Editor (EPM) 
  to edit your CONFIG.SYS -- it does not support lines 
  longer than 255 characters. 

20. How do I add a CD-ROM device driver to OS/2 
       Warp before I install OS/2 Warp? 
 
 It's best to follow the instructions that were provided 
 with your driver, but we'll give you a few hints. 

 Basically, you need to create room on diskette 1 to add 
 your new driver. Because you're installing a custom 
 CD-ROM driver, you can delete one or two of the 
 drivers on diskette 1 to make room for the one you are 
 adding. Follow these steps: 

    1. Make a backup of diskette 1. 

    2. If the file you're installing is an Adapter Device 
       Driver, delete on of the ADD files and remove the 
       reference to it from the CONFIG.SYS. 

    3. If the file you're installing is a file with a FLT 
       extension, delete one of the FLT files and remove 
       the reference to it from the CONFIG.SYS. 

    4. Copy your driver to the diskette. 

    5. Add a line to CONFIG.SYS that says BASEDEV=X 
       where X is the name of the driver you are 
       installing. 
  
  You can now begin the installation. 

     See FAQ 19, "How do I edit my CONFIG.SYS file?" 

21. How do I add a new CD-ROM drive after 
       installation? 
 
 If you are adding a new CD-ROM drive to an OS/2 Warp 
 PC, use OS/2 Warp's Selective Install program (in your 
 System Setup folder) to add CD-ROM support. Allow 
 Selective Install to try to autodetect your CD-ROM 
 drive, and accept its recommendation. Sometimes your 
 CD-ROM model will not be listed, but Selective Install 
 will recognize it as an earlier model in the same family. 
 This phenomenon is perfectly fine, because later models 
 generally do not require any changes in the way 
 software (such as OS/2 Warp) "talks" to them, and all 
 features will be fully supported at the higher speeds 
 provided by more advanced models. OS/2 Warp will 
 recognize as many standards as your CD-ROM drive 
 supports: Kodak PhotoCD, CD-ROM/XA, audio, and 
 conventional ISO data access. 

 DOS or Windows drivers (such as MSCDEX) are not 
 required and should not be used under OS/2 Warp 
 because OS/2 Warp provides CD-ROM support to DOS 
 and Windows applications if the correct OS/2 Warp 
 CD-ROM drivers are installed. 

22. OS/2 Warp can't identify my video adapter. What 
       should I do? 
 
 When OS/2 Warp cannot identify your video adapter, 
 you can change the video driver from the default VGA 
 setting through the Selective Install program. To find 
 the Selective Install program, click mouse button 2 on 
 the desktop background and select System Setup from 
 the menu. From the System Setup folder, open the 
 Selective Install icon which opens the System 
 Configuration window. You will see a monitor icon 
 labeled Primary Display that you click with the mouse 
 to list the video adapters. 

 When you open the Display Driver Install window, OS/2 
 Warp will automatically select the adapter it thinks you 
 have installed. In some cases, this adapter may be 
 different from the one the initial installation process 
 selected. If OS/2 Warp has selected the wrong driver, 
 simply move the highlight to the correct adapter and 
 press Enter. This change will not take effect until you 
 shut down and reboot the system. If the display should 
 prove unreadable after the next reboot, you can easily 
 reconfigure the system to a VGA display. 

 Note:  Once you configure the proper video driver, you 
 may need to reset the resolution. Also, OS/2 Warp may 
 not contain the correct video driver. Check with the 
 manufacturer. 

 See FAQ 23, "How do I change screen (video) 
 resolution?" 

23. How do I change screen (video) resolution? 
 
 If your video adapter supports multiple resolutions you 
 can switch among them by changing the screen 
 configuration options for your system. To do this, open 
 the System Setup folder and double-click on the 
 System icon. The top page of the System Settings 
 notebook appears, as seen in Figure 4-5. 

  The Screen resolution field lists the the mode 
  (resolutions and number of colors) that your display 
  adapter supports and highlights the currently selected 
  mode. If your video adapter doesn't support multiple 
  resolutions, you'll only see the current listing. 

  To change the mode, select the one you want and 
  close the Settings notebook. Then close all open 
  applications and perform a shutdown. When you reboot, 
  the new mode will take effect. 

  Note:  The number of colors you get in each video 
  mode will depend not on the capabilities of your 
  monitor but on the amount of video memory your video 
  card has on board. (VGA and SuperVGA monitors use 
  analog color signals, so there's no real limit to the 
  transmission of color information from the video card to 
  the monitor. Of course, the quality of the display 
  monitor and its condition will influence how well it 
  displays millions of separate colors.) You can generally 
  expect the capabilities shown in Table 4-1, based on 
  the amount of video memory you have, but results are 
  highly dependent on both the video driver and video 
  card type. Note that 16-color modes above 640x480 
  (except with XGA video) are generally not supported. 

  Video Memory             Modes Supported (maximums for 
                           each mode) 

  256K                     640x480 in 16 colors (standard 
                           VGA) 

  512K                     640x480 in 16 colors (256 for 
                           some) 

  1024K (1MB)              640x480 in 65,536 colors (16 
                           million for some) 

                           800x600 in 65,536 colors 

                           1024x768 in 256 colors 

  2048K (2MB)              640x480 in 16 million colors 

                           800x600 in 16 million colors 

                           1024x768 in 65,536 colors 

                           1280x1024 in 256 colors 

  4096K (4MB)              640x480 in 16 million colors 

                           800x600 in 16 million colors 

                           1024x768 in 16 million colors 

                           1280x1024 in 65,536 colors (16 
                           million for some) 
  

24. I've got a new video adapter; can I just change a 
       line in CONFIG.SYS to have access to it? 
 
 No. Using video is a complex process, and you have to 
 go through an installation procedure in order to make 
 sure the video (display) adapter and its drivers work. 
 There are actually five drivers needed to run your 
 display and each of the five has a specific purpose. 
 You'll need to add each of them. To do so, use the 
 Selective Install program in the System Setup folder. 
 The following list will give you an idea of what's 
 involved: 

      For full screen OS/2 Warp sessions there is a base 
       video handler that is established in CONFIG.SYS 
       with a line like SET VIO_XGA=. 

      To run your Presentation Manager (PM) sessions 
       there is a Presentation driver, and the OS2.INI file 
       maintains the configuration information. Unlike 
       Windows, OS/2 Warp .INI files aren't text based so 
       even if you know what information to insert in the 
       file, you can't easily access the file. 

      For DOS VDM (virtual DOS machine) sessions, 
       information about your display is found in a 
       DEVICE= line in CONFIG.SYS. 

      For your WIN-OS/2 full screen sessions there's a 
       DISPLAY.DRV= line in the SYSTEM.INI file. 

      For running WIN-OS/2 application on the OS/2 Warp 
       desktop, there's a statement starting with 
       SDISPLAY= in the SYSTEM.INI file. 
  
25. I got an updated driver for my printer. How do I 
       install it? 
 
 Printer drivers are installed by changing the 
 configuration of the printer object, rather than adding a 
 device statement to your CONFIG.SYS file. To install a 
 new driver: 

    1. Click on the printer object with mouse button 2 to 
       bring up the pop-up menu. 

    2. Choose Settings to display the Settings notebook. 

    3. Click on the tab marked Printer driver. 

    4. Press mouse button 2 on any driver icon to bring 
       up its pop-up menu. 

    5. Choose Install. A window similar to the one shown 
       in Figure 4-1 will appear. Notice that the 
       installation program assumes you want to install 
       one of the drivers included in OS/2 and has listed 
       all of them. (If you were installing one of these 
       drivers, you'd simply select the appropriate driver 
       and click on Install.) 
       
     6. Click on the Other OS/2 printer driver radio button. 

     7. Put the diskette containing the new driver into
        drive A and click on Refresh. All the drivers on the
        diskette will appear in the Printer driver field.

     8. Select (highlight) the driver you need.

     9. Click on Install.
  
  That's all there is to it. Your new printer driver is 
  copied to your hard disk and is linked to your printer. 
  By the way, don't forget to close the Settings notebook 
  by double-clicking on the icon on the left side of the 
  title bar. 

26. I'm having trouble installing OS/2 Warp. What 
       should I do? 

 The first place you should go is to the manual that 
 accompanies OS/2 Warp. This manual contains a lot of 
 information about installation. 

 Here are a few common problems encountered during 
 installation. 

      Be sure your CMOS setup parameters are set 
       correctly, especially those relating to diskette 
       drives. 

      Disable cache memory and/or shadow RAM. 

      Turn off any turbo switches. 

      Make sure your computer is not sharing interrupts. 

      Older Adaptec SCSI adapters may require a free 
       BIOS upgrade to recognize hard disks larger than 1 
       GB. Adaptec can be reached at 1-800-442-7274 or 
       1-408-945-8600. 

      Some Quantum LPS105AT IDE hard disks require a 
       free ROM update (to Version 2.6) from the 
       manufacturer to work with OS/2. 

      If your AMI keyboard BIOS is below Revision F you 
       may need an update. Contact Washburn & 
       Company for an inexpensive replacement. They can 
       be reached at 1-716-385-5200. 

      Be sure that keyboard DIP switches are set 
       correctly. For example, if the keyboard is attached 
       to a system with an AT bus, it should typically be 
       switched to AT mode. 

      "Autoswitching" on non-IBM EGA adapters should 
       be disabled, usually with a DIP switch or jumper 
       setting. 

      In rare cases it may be necessary to switch 
       third-party VGA/SuperVGA adapters into 8-bit mode 
       and/or disable "autosense." 

      OS/2 Warp is particularly sensitive to bad RAM or 
       cache memory (often reflected in TRAP 0002 error 
       messages). Use a thorough RAM testing utility, and 
       try not to mix 9-chip and 3-chip SIMM/SIPP memory 
       modules. When upgrading, avoid adding RAM that is 
       not rated (in nanoseconds) at least as fast as the 
       RAM already in the system. 

      Allow several minutes for OS/2 Warp to build your 
       desktop and display icons at the end of 
       installation. Take the Tutorial offered to you in the 
       meantime. Be sure to take a look at the 
       documents found in the Information folder, too. 

      If you encounter "Cannot find COUNTRY.SYS" 
       messages when booting OS/2 Warp, try 
       disconnecting any tape backup device. This error 
       message may also indicate that OS/2 Warp cannot 
       find its boot drive, usually because of an 
       improperly loaded hard disk .ADD device driver. 

      An Always IN-2000 SCSI adapter with BIOS 3.06A or 
       3.20 requires an updated version from the 
       manufacturer. A companion 8-pin serial PROM chip 
       may also need to be updated. You may also want 
       to ask about non-IBMINT13.I13 driver support. 

      The Texas Instruments TM4000 notebook may 
       require a BIOS update to run OS/2 Warp; you can 
       telephone 1-817-771-5856 for help. Also ask about 
       an OS/2 Warp driver for the QuickPort trackball. 
       Before installing OS/2 Warp on this notebook, be 
       sure to set Advanced OS Power Off and HDD Motor 
       Timeout Always On in the second page of the 
       machine's setup screen. 
  
___________________________________________________________________________

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LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY:  

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These excerpts were provided by Michael Kaply and Timothy F. Sipples and 
carry the same warranty as their book.

Trademarks:  All brand names and product names used in this book are
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___________________________________________________________________________

 
 Michael Kaply has worked for IBM for five years. He 
 currently works on the OS/2 Warp development team in 
 Boca Raton, Florida. He has published articles on OS/2 as 
 well as spoken at a number of conferences. Most recently 
 he was the lead developer on the highly-acclaimed OS/2 
 Warp Tutorial. He has been involved in just about every 
 facet of computers, from customer support to programming. 
 He has been using OS/2 since Version 1.1. 

 Timothy F. Sipples is a Technical Marketing Specialist for 
 IBM and is based in Chicago, Illinois. He is the author of the 
 Internet's popular OS/2 Warp Frequently Asked Questions 
 List, recipient of OS/2 Professional's 'Team OS/2er of the 
 Year' (1994), and an OS/2 Certified Engineer. Mr. Sipples 
 travels extensively, appearing at trade shows, seminars, and 
 on radio and television programs, demonstrating and 
 explaining OS/2 Warp. He joined IBM in March 1994 after 
 studying economics at the University of Chicago where he 
 was mentored by Robert Fogel. He also studied economics 
 as an undergraduate at Harvard. 

 Bradley Kliewer has been writing books and articles about 
 computers since 1985 on topics ranging from hardware 
 intricacies to software design. He has been using OS/2 since 
 its introduction. As editor of OS/2 Professional magazine, his 
 day-to-day work revolves around the benefits of IBM's 
 latest improvements to its PC operating system OS/2 Warp. 




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