how to call win32 dll from .NET application folder

Question

i can call (DLLImport) Win32 .DLL file from a constant specified path in C#.NET. but if i want to load it from my aplications folder (executavle file path) , what shoud i do? the DLLImport Attribute doesn't allow to specify a variable path. plz help me. tnx

score 1 · Answer 1 · answered Feb 22 '11 at 11:21

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If you DLLImport without specifying any path it should look in the application folder.

answered Feb 22 '11 at 11:21

Felice Pollano

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score 1 · Answer 2 · edited May 23 '17 at 12:04

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Use SetDllDirectory Function to specify a path of your choice.

[DllImport("kernel32.dll", SetLastError = true)] 
static extern bool SetDllDirectory(string lpPathName);

More on MSDN: http://msdn.microsoft.com/en-us/library/ms686203%28VS.85%29.aspx

Check earlier post on stackoverflow: Specify the search path for DllImport in .NET

edited May 23 '17 at 12:04

Community

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answered Feb 22 '11 at 11:26

ukhardy

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Thanks for your help. i'll take a look at the links. – losingsleeep Feb 22 '11 at 12:00

score 0 · Accepted Answer · answered Feb 22 '11 at 11:21

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Just specify dll name without path. As below:

    [DllImport("Dllname.dll")]
    static extern void Foo();

And it would be searched in app folder.

answered Feb 22 '11 at 11:21

Anton Semenov

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how to call win32 dll from .NET application folder

3 Answers3