Per ap0x's request:

Please post this solution to aPE`s SP2 problem over at exetools.com

To solve XPSP2 patch problem you must first unpack WinUPack and patch following adresses to this:

00503B96 MOV DWORD PTR DS:[50E8AC],3
00503BA0 JMP SHORT aPE.00503C12


SiGiNT