I just installed Fences Pro on my system, and find it curious that WinMerge is on the right-click menu of each frame.  Ok, I checked 4 out of 14 fences, and all 4 had WinMerge and no other program on the menu. There are also the entries to bring up the Windows built-in components "Screen Resolution, "Gadgets" and "Personalize".  But those are different than a user installed program.    

That's a right-click on the frame itself, not on one of the icons in the frame.  (BTW, I had already put WinMerge on my system many months ago.)  I did (with some anxiety about what might happen to that fence or the files in it) select WinMerge on that menu.  WinMerge just started up in the usual way, prompting for files to compare/merge -- nothing particular to Fences seemed to happen.

So, what's so special about WinMerge that it appears on that menu when others don't?  

For example, WinZip appears (in addition to WinMerge) on the context menu when I right-click a file in Windows Explorer.  So, why doesn't WinZip also appear on that menu when I right-click a fence?  Well, either that or neither of them.

Actually, it would make more sense for WinZip to appear, if only one of them did:  creating a zip of all the files/programs represented by the icons in the fence (perhaps there are 10 of them) makes more sense than trying to apply WinMerge to 10 files/programs.

I'm on Win 7 Enterprise, with no service packs, running on a VM.  It seems that SP1 is still the most recent SP for Win7, if that matters.

Thanks,
Paul