Ok, please try build below and let me know your experience:
http://downloads.vladonai.com/Install_AllMyNotes_2_32_b384_snap.exe
As AllMyNotes supports skins, Windows cannot enable snap feature for it, therefore we have to handle this functionality manually. We've implemented Win+Left, Win+Right, and Win+Down shortcuts support (surprisingly, Win+Up key works even without our help). Also drag&drop and dual monitors must be supported unless we've missed something.
As a side-effect of extra work that we've done from our end, Snap feature works in all Windows versions!