CODEWITHSUNDEEP
c#dll.net-4.5
Thisis109
Thisis109

Reputation: 31

Unable to load DLL XXX.dll, Can not find specified module.(Exception from HRESULT: 0x8007007E)

Recently I wrote a small winForm program using C# language. In the app I use C# to invoke a "*.dll" file written in C++. It works all right in my Visual Studio 2012 and on my computer, but when I move it to other computer, it always pops an error about “ Unable to load DLL ' *.dll',can not find specified module.(Exception from HRESULT: 0x8007007E). ”.

I've searched the internet for solution. There are also some similar questions regarding problems that others met and it seems that they also have not found the right solution yet. I also tried some methods like moving my '*.dll' file to windows\system32 or write the app current directory to System Enviroment Variable, but this also didn't work.

Now I really don't know how to deal with it. So I'll be very appreciative if someone could give some help.

I'm new here and thanks very much.

Upvotes: 3

Views: 3218

Answers (1)

SCBuergel
SCBuergel

Reputation: 1653

Pretty old post but shows up first in Google so I am gonna post my solution to the issue: I was writing a minimal DLL in C++ which I integrated in a minimal C# console application and got the same error that you stated above. The final fix is simple: Your target PC might not have the appropriate VS redistributable package installed. In my case (VS 2013) it was this one here: http://www.microsoft.com/en-us/download/details.aspx?id=40784 for some reason it does not work to copy the required DLLs from the system32 folder manually... what a freak bug taking me half a day to find out. I did not find this anywhere online, will do some cross-posting now...

Upvotes: 1

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