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LdrLoadDll in nt native api
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BanMe View Drop Down
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Joined: 18 August 2006
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Posts: 55 		  Quote BanMe Quote  Post ReplyReply Direct Link To This Post Topic: LdrLoadDll in nt native api
    Posted: 28 August 2009 at 8:52pm
if your dll is in the 'systems' search path there is no need to specify one ;) just rely on the system being able to locate it.. so code such as this 




RtlInitUnicodeString(&Namedll, L"exampledll.dll");



status=LdrLoadDll(L"\\??\\C:\\WINDOWS\\system32", 0 , &Namedll, &mydll);
should work like this..


HMODULE mydll = 0;




RtlInitUnicodeString(&Namedll, L"exampledll.dll");



status=LdrLoadDll(0,0 , &Namedll, &mydll);
if this continues to fail, then you maybe just have to come up with a alternitive method of 'loading' it..if there is a problem with your Dll's DllMain or LibMain or w/e that could also be a problem.. try loading your dll into OllyDbg using the LoadDll feature present in version 1.10..if olly loads it properly then you can try the upper solution, otherwise you will have to recompile your dll.. ;)
 
regards BanMe 
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sepehrst View Drop Down
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Posts: 1 		  Quote sepehrst Quote  Post ReplyReply Direct Link To This Post Posted: 04 November 2009 at 5:21am
Hi
 
Does the dll your're trying to load, imports any dlls from user mod(win32 subsystem) land? (like kernel32, user32,...)
if so, then you will fail to load your dll.
To be able to load the dll in your native app, the dll must import ONLY ntdll.dll or other "native" dlls.
 
 
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zahra34 View Drop Down
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Posts: 32 		  Quote zahra34 Quote  Post ReplyReply Direct Link To This Post Posted: 06 November 2009 at 5:39am
hi
you are correct.maybe it has user mode dlls too that can not load them.I'm not sure.thanks for your reply
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