Från http://www.settlers3.com/faq/faq3.htm#3-009-0
Can I play Settlers 3 with Windows XP?
The game “The Settlers III” was not developed for Windows XP and was not tested for it. To play “The Settlers III” under your Windows Full Version, you only need to install a secondary Bootpartition with Windows 98
Men tycker att jag skulle ha fått igång det men kommer inte ihåg hur.
Edit: hittade detta nu.
Play S3 on WinXP NOW - Jetzt S3 auf WinXP spielen!
You can now play Settlers 3 on a Windows XP installation, thanks to a revised version published by Bluebyte on April 29, 2002. Here the steps:
1) install S3 original, MCD and Add-On.
2) DOWNLOAD s3old160.exe and place in C:\Bluebyte\Settlers3 directory and execute the patch. You only need to do step 2 on a fresh installation. On an existing installation already patched with 1.60 just execute step 3.
3) DOWNLOAD s3exe.zip , unzip it and copy it to your C:\Bluebyte\Settlers3\ directory (overwrite the old s3.exe)
That should be it, and happy playing on XP.
ftp://64.246.23.123/s3updates/s3old160.exe
ftp://64.246.23.123/s3updates/S3_XP_aldi.zip
