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View Full Version : cracking dos prg


rags
May 6th, 2001, 23:29
I am an absolute newbie trying to crack a dos program that registers a user for "Seabattle". I have cracked Winzip 8.0. That alone's my experience.

In the Dos program that runs in Win98 hexeditor shows up strings such as "Enter serial no.", "You are registered", "Invalid Serial No" etc. But disassembly (thro' HIEW 6.0 or W32Dasm) does not show them. Why ?

How to break into the prg using Softice while running it under Win98 ?

emulder
May 7th, 2001, 02:20
Hi,
I suggest, that you use IDA for disassambly. This works much better
on DOS-programs than HIEW (not talking about W32DSM ;-).

If you are running Win9xNT and Winice, you might use the Dos-Loader,
which is in the subdir SoftICE/Util16. Just type dldr.exe <filename.exe>
and SoftICE is ready to trace you program...
hope this helps
cu