cgrs,
I believe the key being used is
0DEBF4F725768E6195BD7A1226CC782C
It has been a very very long time since I worked on this protection, and can't seem to remember how to trace the modifiers out. But I believe this should be a start.
In ollydbg it is loaded here
Code:
dregistro::TFormRegistro.OgDaysCode1GetKey
00770194 push ebx
00770195 push esi
00770196 push edi
00770197 mov ebx,ecx
00770199 mov edi,ebx
0077019B mov esi,9E5674
007701A0 movs dword ptr [edi],dword ptr [esi]
007701A1 movs dword ptr [edi],dword ptr [esi]
007701A2 movs dword ptr [edi],dword ptr [esi]
007701A3 movs dword ptr [edi],dword ptr [esi]
007701A4 pop edi
007701A5 pop esi
007701A6 pop ebx
007701A7 ret