First post, by gordon-creAtive.com
Update: There is an application called "SteamLite" that provides basic Steam client functions over a CLI interface and there is a version compatible with XP.
- Make sure you have Internet Explorer 8 installed.
- Control Panel > Internet Options > Advanced > Scroll way down > Enable "Check for Server Certificate Revocation".
- Install up-to-date Certificates.
- Get the steam Setup.
- Install Steam. It may hang when creating the desktop shortcut, just kill it with the task manager.
- Start Steam and let it update itself. Once finished it complains that XP is no longer supported. Give Steam the finger and click "OK".
- Find "SteamLiteXP" on the internet. While the application is perfectly legal (you can't pirate Steam games with it) it is distributed on a Russian piracy board that specializes in Steam. So no links here unfortunately. The SHA1 sum of version 1.1.6 is "8650f8c42644151defaa02b434941d6576315f7b".
- Move "SteamLiteXP.exe" to your Steam root folder.
- Run it and follow the instructions.
Also make sure to read the instructions in the text file that comes with SteamLiteXP.
I was able to launch and play Left4Dead 1 online with this.
So it seems Valve has finally locked XP users out of Steam... However I found this video providing a workaround: https://www.youtube.com/watch?v=SdowDSc9p8c The problem is, I don't really trust some random downloaded DLLs from the Internet. Could someone trustworthy be so kind and provide the DLLs or test this download for authenticity?