This is Perl module Win32::FindWindow.
INSTALLATION
Win32::FindWindow installation is straightforward. If your CPAN shell is set up,
you should just be able to do
% cpan Win32::FindWindow
Download it, unpack it, then build it as per the usual:
% perl Makefile.PL
% make && make test
Then install it:
% make install
DOCUMENTATION
Win32::FindWindow documentation is available as in POD. So you can do:
% perldoc Win32::FindWindow
to read the documentation online with your favorite pager.
Michiya Honda