Just to help others help the OP, I did not find this module listed in CPAN. I did, however, find it at http://www.roth.net, specifically at http://www.roth.net/perl/adminmisc/. You can also see if there are any Roth scripts that will help. Although the Roth site has a link to an FTP server to get the latest source, that doesn't seem to work. ActiveState doesn't list it in the PPM search engine, either.
I also found Compiling Win32::AdminMisc on ActiveState 5.10 that describes getting it compiled on ActiveState Perl, but the OP seems to already have the module. That has a link to a Google Code version of the module, but, again, the OP needs help using the module, not getting it installed. Based on the dates of the modules, I suspect there won't be many Monks who can help.