DosBox Can't Swap memory pages between Games and a Memory Resident Program ?

Error has accourd when i try to use the Game Wizard/Infinity=={GW/I} while i play game X-Com 2 TFTD.

These following step that i do .. until error rised.
1. Run DosBox (v0.7)
2. Run the MR Program {GW/I}
3. Run the Game
4. Swap the memory with the Program .... then bang error!

If anyone want to try it, PM me your mail and i would sent the program and the game.

Note : Game Wizard/infinity is a memory hacking tools similiar with Game Hack 2.0.
My Computer spec :: Processor=Via C3 Samuel,mem=128,os=XP.

Please help to identify this problem, why DosBox had this error.