PPM> verify
An upgrade to package 'HTML-Parser' is available.
PPM> install HTML::Parser
Install package 'HTML-Parser?' (y/N): y
Retrieving package 'HTML-Parser'...
Error installing package 'HTML-Parser': 
   Cannot forceunlink C:\perl\site\lib\auto\HTML\Parser\Parser.dll: 
   Permission denied at C:/perl/lib/File/Find.pm line 499