If it's any help I loaded Redline on WinXp with a simple twist. I put the disc in and went to the setup folder from Windows explorer. I put the setup icon on Windows 98 , ME compatibility and the game loaded . I applied the patch and rebooted. While in the Win 98/Me compatibility mode the game would not start from the desk top icon but show the error screen " Not Supported on Windows Nt". I went into properties and removed the compatibility for Win89/Me and let it go back to WinXp. Bam ! When I try starting it again the game came up and ran with no problems. Go figure! It may be a quirk with my system , but give it a try!

Won't install (Not Supported on NT) whether or not Windows95/98 compatibililty modes are set on the installer.

My computer configuration:
Windows 2000
DFI Infinity II NForce 3 Motherboard
XFX GeForce 6800GT 256MB AGP
Athlon XP 3200

I got game working under xp with no problems. First you put in the CD, then explore the cd, find the autorun and right click, goto properties and set compatibility. Once the game is installed, then you need to browse to the game folder on C drive and find Redline(.exe) and set the compatibility of that also.

Only major problem we have is not being able to host a multiplayer game. Not sure if Dialup is only support, me and some others have been trying with DSL with no luck.

Works great just like the others said. Been playing since 1999.