Problem with VB soft
 

hi! guys started cracking a vb app.

actually it's screensaver coded in VB5 but the main protection lies in a file with a spf extension. The file is not a valid pe file but the check for the serial is made to the scf file when u enter the serial in the screensaver file. just wanted to ask is there a vb5 equivalent for readfile api etc!!!

for serial checking i used three api's --
vbastrcmp
vbavarcmpeq
vbavartsteq

but the app does not use these routines!!!!!!!!
did a search but couldot find anything usefull.

Is there a smartcheck for winxp like for 98? :mad:

VB debugger for P-Code compiled apps

http://members.v3space.com/blackfenix/wktvbdebug

Google is ur friend for other info u need. I found many links ;) ..now see who's giving search lessons :eek:

The latest version of SmartCheck is 6.20 and it works with windows xp

You can also try VB Parser 1.2 to get the p-code tokens.

Need more information on cracking vbapps head over to
hxxp://decompiler.theautomaters.com
The best place to find information on vb decompiling.

Some VB msvbvm60.dll api calls for working with files.
__vbaFileOpen,Open #
__vbaGet4,Get #
__vbaInputFile,Input #
__vbaFileClose,Close #
rtcFileSeek,Seek()
rtcFileLocation,Loc()

Goto h++p://66.98.132.48/krobar/ and look for the vb section, there are many tuts that may interest you there... + ones that teach you smartcheck. :)

ps: when you compile a vb app, you can compile it in p-code or in native code so p-code is a vb app (well something like that)

Thanks for replying guys!!!!!!!1

i got the hold of it!!!!!
The breakpoints did not work because when u enter the serial the app does not perform any check but stores it in the registry. it perfoerms a check when it restarts----

it uses __vbafileopen to call the spf file, and uses the __vbavartsteq to compare the serials.

thanks for everybody's help!!!!!!!!!