What is the latest version of Adobe Acrobat Reader that will run on Windows XP?

The Windows Vista versions of Adobe Acrobat work on Windows 7.

According to Adobe's web site, Adobe Acrobat versions 8 and above are Vista compatible. Adobe Acrobat versions 7 and previous versions are NOT compatible with Vista/Win7.

However, I currently use Adobe Acrobat 5 under Windows 7 with the "compatability mode" set to XP service pack 2. I don't have any problems at all. Install your older version of Acrobat, open the "program files" folder then open the "adobe x.0" folder, then the "acrobat" folder. Right click the "acrobat.exe" icon, choose "properties", then click the "compatability" tab. Click/check the box for "run this program in compatability mode for" and select xp service pack 2 or 3. Click "apply" and then "OK".