In order to execute iTools, the user must first set the iTools environment variables ICDIR, ICOS, and LD_LIBRARY_PATH (SHLIB_PATH on HP Unix). In addition, the user must set up appropriate links if the Netscape plugin is to work correctly. ICDIR is the pathname of the iTools root directory. ICOS is the name of the operating system. The name of the operating system can be determined by executing the icuname command in the ./ directory. LD_LIBRARY_PATH describes the search path for dynamically linked libraries. All of these variables and the Netscape plugin setup can be set to the appropriate values by typing 'source .icrc ' in a C-shell. For Bourne and Korn shell users type

         .    ./.icrc .sh 

         .    ./.icrc .ksh