Deus Ex Game of the year edition compressed to about half the size with 7zip.
1. Install 7zip or WinRAR if you don't have it
2. Right click DeusEx.7z and go to 7zip -> Extract to...
3. Wait for it to decompress (takes about the same time as installing)
4. Go into whichever folder it decompressed to, go to system, and make a shortcut to DeusEx and put it on your desktop.
5. Enjoy! Multiplayer works without needing a serial or anything!!!!!!!!