Corrupt DLL

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Kinex

Joined: 16 Jul 2004
Posts: 35

Kinex 27 Nov 2005, 14:52

This is advanced and is not really an assembly question more a PE Exports question.

I have a DLL that isn't really corrupt but it seems a bit buggy since I think all is ok with the DLL but I simply cannot import the function MathMul I don't know why..

I am sure the error is in .reloc or .edata section but I can't figure it out. It always pops up an error saying that the entry of MathMul could not be found when I try to call the function.

I tried to debug with StudPE and PE-Explorer but all seems ok! I don't get it what's wrong.

I hope there is someone out there who has knowledge about the PE-Format. And exports!

Thanks for any help!

BTW: DLL is not written in fasm.

Best Regards,
Kinex

Last edited by Kinex on 28 Nov 2005, 19:27; edited 1 time in total

27 Nov 2005, 14:52

pelaillo
Missing in inaction

Joined: 19 Jun 2003
Posts: 878
Location: Colombia

pelaillo 28 Nov 2005, 13:24

The functions aren't sorted alphabetically (case sensitve) inside the dll. Some versions of windows rely on that order to work properly. Re-sort them as follows and test again:

IsInitialized
MathMul
Message
MsgStrPtr

28 Nov 2005, 13:24

Kinex

Joined: 16 Jul 2004
Posts: 35

Kinex 28 Nov 2005, 19:26

Unbelievable. You're right. I noticed that before while trying arround but I was not sure! That makes clear to me why fasm sometimes writes ordinals like 0 3 1 2 Wink

Thank you pelaillo! You really helped me out!

28 Nov 2005, 19:26

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