svchost.exe problems...

I keep getting this message and then after which i cant open any programs...

http://fusiun.sidez.net/teamps/error_message.gif

I dont know what the problem is and im hoping someone here does :p.. I did some research on 'svchost.exe' and found this. Maybe it will help in finding the problem, but im not sure.

Heres the link...
http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/Q250/3/20.ASP&NoWebContent=1

Hopefully someone here can help... I dont really wanna reformat if its possible, But if it comes down to it I will :(

Additional information:

Im running windows 2000 professional - with service pack 3, im not sure if there is a more recent service pack that i need to get, maybe that is the problem. But, I think it something else that just a simple windows update can fix...

There are a lot of patches after SP3.... they are almost ready to put out SP4.... Its hard to say what is causing it, but the first place to always go is microsofts site (after Google of course.) and see what updates need to be done.

Alright... im going to go download the updates/patchs right now. I also did a full virus scan last night and found some infections of the w32.blaster.worm Im not to happy about that, hopefully i can get that thing under control.

Ill post again if the updates dont work or if they do.