Not sure how much confidence or trust in a site that have a section on Virus code.

Short extract from the Virus Code page.

We have only included source code for a small fraction of the viruses out in the wild to show you how easy it is to write one. Making public the source for viruses, will not make any impact to the huge number of viruses out there - virus writers are aware of the loop-holes and procedures used by these viruses anyway.

Responsible, I think not. So would I let them tweak firefox, to somehow allow it to run active X, - because that is the major requirement of windows update - No way.

Perhaps you should edit out the web link in your post, we don’t want to make it any easier for the script kiddies, to get some code to tweak.