LTOOLSgui (C) Werner.Zimmermann@fht-esslingen.de

Get help on how to use LTOOLSgui by clicking the HELP button in the applet's toolbar or click here to load the help page directly

### Operation of LTOOLSgui as a standalone Java application

- Running LTOOLSgui as a stand alone application is the preferred solution. To start it, simply type LTOOLSgui from your command line or double click on LTOOLSgui.bat in the Windows Explorer. You must have the Java SDK 1.2 (or newer) or at least the Java Run Time Environment JRE 1.2 (or newer) installed and accessible via your path setting.

### Operation of LTOOLSgui as a Java applet in a web browser

- Running as a stand alone application is the preferred solution. However if you really want to run LTOOLSgui as a Java applet in your web browser, open this page in your browser. You must have the Java Plugin 1.2 (or newer) installed. Probably, this only works with Netscape's Navigator or Microsoft's Internet Explorer.
- LTOOLSgui requires some information about your operating system and needs access to your local harddisk. Due to security considerations (Java's sandbox concept), in a standard installation this is not allowed for Java applets. To enable the necessary hardware access, you have to modify Java's security policy appropriately. The following policies are needed:

      		grant {
        			permission java.io.FilePermission "<ALL FILES>", "read, execute";
        			permission java.util.PropertyPermission "user.dir", "read";
      		};

- This code should be placed in a file named ".java.policy" and copied to the user's home directory. If a file of the same name exists, instead of replacing it, add the above code to it. For your convenience a .java.policy file is already provided in the ./bin directory of the LTOOLS.
- Note: Using a policy as described may pose a security risk to your system, as any JAVA applet loaded from the Internet will use this policy, bypassing some of the standard sandbox restrictions. If you want finer control, use the "policytool" contained in the JDK. Instead of granting access to ALL FILES you may then restrict access to those files contained in the .\bin" directory, where your LTOOLS files are installed.