Wow, something wrong with windows 2000??? When I open the file its says something about installing a version of a certain Net Framework. Between everything I open from E3p0 either not working and/or containing viruses, and Windows 2000 being the most inadequate gaming computer on the planet, I can say I'm not very surprised but I am a little bit mad at the fact that I have not been able to play Halo CE for months now due to the fact that no one plays on v1.08 anymore and that this new problem has occurred. Please help. I need Halo. I need my fix. I'm an addict. : /
Edited by jimmy on Jun 28, 2010 at 07:30 PM

Do what you are told, these errors are given for a reason ;)
Install the .Net framework, my guess .Net 2.0 should be enough.

http://www.microsoft.com/downloads/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-aab15c5e04f5&displaylang=en
( Supported Operating Systems: Windows 2000 Service Pack 3 )


You could either update to 1.09 or get something called "version changer", made by Goemitar, which allows you to keep your current install version and play on other versions of halo.
http://goemitar.wordpress.com/2008/08/21/halo-version-changer/

Hope this solves your problem.