Instal-lproblem Longest Journey

[jaspeare]

I have problems with installing 'Simon 3D' & 'The Longest Journey'.
When I try setup.exe at the CD, the computer waits for a couple of seconds and then it's like I've never started it.
There are no errors in Windows XP and there is nothing in the taskmanager.
I have already tried Deamon-tools with Safedisc-option, but didn't help.
Does anybody know how to get the setup to work?
Or where I can find new setup.exe for these games?