Code:
Source: http://www.trescom.3dactionplanet.gamespy.com/forum/viewtopic.php?t=1328
INSTRUCTIONS:
1. If you already have game installed, please uninstall game first.
Afterwards, restart computer.
2. Insert Trespasser Cd into Drive. Once Installation screen shows,
exit screen (Do not install!)
3. From Desktop, go to My Computer. Enter Local Drive [C]. Create
folder named; tres cd (space included). DataPath: C:\tres cd\
4. Before commencing the copyng of the cd, please be certain that
the option of 'view hidden files' is checked. (From window, choose
tools, options, then view. Check box 'view hidden files'.
5. From Desktop, go to My Computer. Right Click on Trespasser
Icon. From DropDown Menu choose 'Explore'. Inside this window
you will see the entire contents of the Trespasser CD. Draw box,
(Mouse Button) around all files. Right Click and choose 'copy'
*Please be certain that you see a file named; EaHelp.GID here. It
will appear semi-transparent. This is the hidden file --
6. Return to the newly created folder, 'tres cd' and open. Right Click
and choose 'paste'. This will copy the entire contents on the CD
onto your harddrive into the tres cd folder.
7. Once Cd copying is complete, remove the Trespasser cd from
its drive. Very Important! Put away in safe location; you will no
longer be needing it.
8. Go into tres cd/setup folder, install from there by clicking on
the icon labeled 'setup95'
*If you are running XP and Installation doesn't go smoothly, or
Trespasser crashes, try installing the game under win95 compa-
tibility mode.
Right click on the setup.exe file. Select preferences, then choose
compatibility. Select Win 95 From DropDown Menu. Further XP
Information can be found here
Code:
http://www.trescom.3dactionplanet.gamespy.com/forum/viewtopic.php?t=3405
9. Follow Trespasser's onscreen installation instructions.
10. That's it... you're done!
I don't know if this will work once the game is patched, but you can try..