wine users - Apr 2010 - diff between 1.0 and 1.1.4x about show images inside an .exe

I have installed a program and his .exe file has some gif89a images compiled
inside the executable.

I need to remove/hide this images when the executable is running, so i openned
the .exe file w/ an hex editor and changed all "GIF89a" by "     
" (six white spaces).

In wine 1.0 this works, and the program runs fine without show the images, but
in wine 1.1.4x the same edited .exe file dont work, the program close because
image format error...

is possible to modify the source code of wine 1.1.4x to accept this like the old
1.0?

i can't edit the first post, so i will ask better: where in the wine 1.1.4x
source code i need to change to work like the 1.0?