i am trying to install w3c validator locally on windows xp with apache server.
I am following this document
http://validator.w3.org/docs/install_win.html
but when i validate some site i am getting this error
SGML::Parser::OpenSP version 0.991 required--this is only version 0.99 at C:/www/validator/httpd/cgi-bin/check line 60.
BEGIN failed--compilation aborted at C:/www/validator/httpd/cgi-bin/check line 60.
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.