_:n6fbf66f782124419ade6038f0ec94feexb8
<http://schema.org/text>
"Rae Jean,\n \nI have a WinXP virtual machine and I decided to try installing TMG 9 on it. When I started it, I discovered I already had TMG 9.01 installed there. I upgraded to TMG 9.05 via the \"Check for update\" feature, something I don't do for my production version of TMG. I figured I'd use the method that most users probably employ. It worked fine.\n \nOne difference: my copy of XP is SP3, while you said you have SP1. SP1 is 12 years old (released in 2002 if I recall correctly), and there were a lot of changes in one of the XP service packs, SP3 I think.\n \nWithout an error message or some description of what isn't working, it's very difficult to help you, but at least we know from my report and Terry's report that TMG 9 will run on XP. I think XP SP1 is an open question, but you should be able to upgrade to SP3 if that turns out to be the issue.\n"
<http://www.whollygenes.com/forums201/index.php?/topic/15923-unable-to-install-tmg-9-on-xp-computer/&tab=comments#comment-66023>