Removing OS Check from an installation?

[Cochrane]

Hello everyone,

I just bought a new game for Windows XP (Rail Simulator). The problem is that I use Windows 2000. I was kinda hoping that the game would still run, but the installation doesn't work, saying that Windows XP is required. Is there any known way to convince an MSI file that it doesn't really need Windows XP?

If all else fails, I could still install XP, but since I plan on purchasing a new computer soonish, I don't want to go through all that hassle unless it's absolutely necessary.

Thanks.

[EscondeR]

AFAIK, you can't convince installer it needs newer OS not (without recompiling the package). You can make installer "think" it uses Windows 2000/ME/98/etc when on XP, not otherwise...

[Chug a Bug]

You could try unpacking the archive but scripts are usually lost in the process in my experiance so if theres anything that specifically needs to be set up i.e. copy .dll's to %systemroot% etc or setup the registry then you could have problems.