Important Win64 question

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snify

Joined: 02 Dec 2004
Posts: 39

snify 13 Jan 2006, 09:11

I want to execute 64bit code from PE32 running on Win64 and 64bit cpu.
I'm trying to make PE32 which checks the os version and then runs 32bit or 64bit code, but PE32+ is invalid format for Win32.. So I'm trying to run 64bit code on 32bit process. Is there any way with threading or something? Shocked

13 Jan 2006, 09:11

r22

Joined: 27 Dec 2004
Posts: 805

r22 13 Jan 2006, 22:21

The simplest way would be to pack the 64bit version inside the 32bit version of the exe and IF the computer can handle 64bit, do a
createfile and write the 64bit version then createprocess or shell exec.

I'm not sure if the 32bit createprocess api will load a 64bit PE but I think this method would work.

13 Jan 2006, 22:21

snify

Joined: 02 Dec 2004
Posts: 39

snify 14 Jan 2006, 00:12

I need other way without creating exe and executing it.. please help

14 Jan 2006, 00:12

SFeLi

Joined: 03 Nov 2004
Posts: 138

SFeLi 14 Jan 2006, 07:41

There is no other way. "Application must consist of either 32-bit or 64-bit code — it can't have both". But r22's solution will work.

More information

14 Jan 2006, 07:41

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