You get get a 64 bit version of Win32::GUI if you are prepared to build from source:

http://perl-win32-gui.cvs.sourceforge.net/viewvc/perl-win32-gui/Win32-GUI/

In reply to Re^2: Install Perl64 *AND* Perl32 by Anonymous Monk
in thread Install Perl64 *AND* Perl32 by EigenFunctions

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