Hi there, I'm the developer of the Perl Qt4 project, and only recently have I gotten the project to compile on Windows. There's an open bug about it: http://code.google.com/p/perlqt4/issues/detail?id=39

There should be a new release coming soon with the fixes for Windows support. I've been testing with ActiveState's Perl, so hopefully Strawberry Perl works as well. I'm also hoping to put out some Windows binaries for XP and Vista (I don't have Windows 7), so that might work for you as well.