That's interesting thanks, but I don't think that's the problem. My provider seems to have updated thier perl core or removed thier CGI.pm module or something.

After lots of trial and error, I found that copying the version of CGI.pm that I'm familiar with to my cgi-bin and then adding
 use lib "E:/myroot/cgi-bin";, solved all of my difficulties. Does this make any sense?

Also my provider still seems to want to limit my file permissions access, can I get control of this on a WIN server?