+1  A: 

It looks like an improvement made to the validator depends on a newer version of SGML::Parser::OpenSP then when the guide was written.

I assume you grabbed the "single zip file" containing all the modules you needed, which appears to be maintained on a non-w3c host (presumably by the module author).

I suggest upgrading to the latest version of SGML::Parser::OpenSP through PPM, and then reporting the bug through the feedback channel mentioned at the bottom of the page you linked to.

David Dorward
Yes i am using single zip file. I am not sure how can i upgrade sgml::parser to latest version. Can you please guide me?
coure06
I hardly ever use perl on Windows, and when I do I use Strawberry not ActiveState. So no. Just read the instructions for PPM. It has a point and drool interface anyway.
David Dorward