in reply to PAR packer error
Which distribution and version of Perl are you using? Based on some info in your post, it kind of looks like you are using ActiveState's 64-bit ActivePerl 5.16.1.
For 32-bit ActivePerl, I would suggest using PPM to install mingw and dmake. Once those are installed, you can install PAR::Packer directly from cpan (i.e.: cpan install PAR:Packer). For 64-bit ActivePerl, you can also use PPM to install mingw and dmake. However, I think that there's one more gotcha step after that, but can't remember what was the issue there. I think it was something to do with Microsoft's 64-bit DLLs for 64-bit Windows that was the problem, which might also force you to use Microsoft's Visual Studio compiler instead of the 64-bit mingw.
If you go with Strawberry Perl, both 32-bit and 64-bit versions already come with everything needed to install modules directly from CPAN.
Also, I personally have not written any scripts that really need the 64-bit stuff (such as 64-bit integers, etc.). So in my case, I've had no issues using 32-bit Perl on both 32-bit and 64-bit Windows. Also, whenever I have taken any of my scripts and used PAR::Packer's pp utility to create a 32-bit executable, that executable worked just fine in 64-Windows. Just thought I'd share that info in case you are not needing the 64-bit stuff.