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Various Unprotection Examples
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1987-12-24
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47 lines
Unprotect for TEST DRIVE game by Accolade...
by Mary Burkoff
Assembly Language Guru
12/25/87
This unprotect works for TDCGA.EXE dated 10/26/87 4:43 pm
This removes all copy protection from the program.
We will use DOS DEBUG for this:
from the DOS prompt:
REN TDCGA.EXE SCHLONG <return>
DEBUG SCHLONG <return>
(now you're in DEBUG)
-D 70D6 L5 <return>
(you should get) 55 56 57 06 1E
(if not, wrong version of TD, see below)
-E 70D6 31 C0 C3 <return>
-D 70D6 L5 <return>
(you should get) 31 C0 C3 06 1E
-W <return>
(you should get) Writing E080 bytes
-Q <return>
(Now you're back in DOS)
REN SCHLONG TDCGA.EXE <return>
(All done)
If your version is different, or you wish to patch
TDEGA.EXE (The EGA version, which I don't have), search
for the 5-byte string above (55 56 57 06 1E) and try
changing it to 31 C0 C3 06 1E. This will probably work.
Comments, Suggestions, Thanks appreciated.
Mary Burkoff
Atlanta PCUG
1-404-433-0062 (Data)