I create win 7 dll, but Win 10 get me error this dll !

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Roman

Joined: 21 Apr 2012
Posts: 1791

Roman 08 Nov 2020, 11:19

In fasm i write direct2D.dll on Win 7 64 bit
In Win 7 all work fine

Today i install Win 10 64 bits.
And run my program and get:

Code:

---------------------------
testdll21.EXE - Bad Image
---------------------------
C:\Users\Roma\Desktop\drv\graphics coding\D2GUI.DLL is either not designed to run on Windows or it contains an error. 
Try installing the program again using the original installation media or 
contact your system administrator or the software vendor for support.
 Error status 0xc0000005. 
---------------------------
OK   
---------------------------

08 Nov 2020, 11:19

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20333
Location: In your JS exploiting you and your system

revolution 08 Nov 2020, 11:29

Does the fasm download example DLL code work for you?

08 Nov 2020, 11:29

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8353
Location: Kraków, Poland

Tomasz Grysztar 08 Nov 2020, 11:45

It is likely this issue: https://board.flatassembler.net/topic.php?p=144941#144941

08 Nov 2020, 11:45

Roman

Joined: 21 Apr 2012
Posts: 1791

Roman 23 Nov 2020, 09:20

Was

Code:

section '.reloc' fixups data discardable

I happy !
In Win 10 (version 20H2) this help fix my dll problem !

Code:

section '.reloc' fixups data readable discardable

23 Nov 2020, 09:20

jochenvnltn

Joined: 15 Jul 2011
Posts: 96

jochenvnltn 02 Jan 2021, 17:28

You can replace

Code:

section '.reloc' fixups data readable discardable

With

Code:

data        fixups
end         data

This works for both 32 & 64bit DLL Wink

02 Jan 2021, 17:28

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20333
Location: In your JS exploiting you and your system

revolution 02 Jan 2021, 22:35

If you plan to distribute your code to others then using non-"standard" layouts with data will trigger some stupid AVs. Your users might complain when the AV blocks it from being run.

BTW: In case you haven't realised yet, I hate AVs. They are useless and stupid, but people still insist they need them without showing any evidence they actually do anything worthwhile. They have morphed into spying engines and not much more. Sad

02 Jan 2021, 22:35

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