See if this helps.
Go to Start > Control Panel > Administrative Tools > Services. Scroll down to and double click on "DCOM Server Process Launcher"
Under Startup Type select "Automatic". Click on Apply > Start > OK.
It may be necessary to restart the computer for change to take effect. Also, Admin permissions may be necessary to make this change.
Hope this helps.
Whenever I insert a program CD and run setup.exe, Windows XP SP2 reports 'Unable to launch Install Shield engine. RPC server unavailable.' The same happens when I try to uninstall programs.
Will someone please help!