The confirmed solution is to take steam_api.dll from any steam game (not 100% sure have they been starting to lose XP support already though), rename that to GalaxyWrp.dll and replace the original with that.

The problem is their Galaxy client that doesn't support XP, even the offline installer version comes with GalaxyWrp.dll which hooks into the exe and calls for something XP doesn't support. Sorry for late answer, I noticed this topic when it was created but I had not registered yet and I thought someone else will answer for me.Īnyway, GOG version of FONV can easily be made to work with Windows XP. But if anybody knows of a method to install GoG's version of New Vegas on XP, or even has information to suggest that it's likely to work, then I'd love to hear what you know. I haven't bought the game so I can't experiment with it.

Or a less desirable alternative: If I install the game under Windows 7, can the installed game be easily transferred to a WinXP machine? Are all of it's files and settings contained under a parent folder that can be treated as portable? Is that trick possible here? Can I use InnoExtract to extract the files from GoG's Windows7 installer and get the game installed and running under WinXP? I have done this with Unreal Gold and Unreal Tournament, for example, and successfully run them on my Win98 machine. With older GoG releases, which officially required WinXP, it was possible to install them on Win98 by extracting the files from the installer using a 3rd party application called InnoExtract. But as I was about to buy it, I noticed that the GoG version officially requires Windows 7 at minimum. Initially, I was excited to see that GoG had added Fallout: New Vegas to it's library. The original Steam release supports XP, but Steam itself is now breaking on XP, so I'd like a permanent alternative. I would like to run Fallout: New Vegas on WinXP. You cannot run a 64 bit program on a 32 bit system at all, so if you do pull this off you will need a fundamentally different (not Bethesda-authorized) version of the game.

Fallout 4 windows 7 32 bit