how to use vc++ functions in c#?

[sandy111]

here i hav a vc++ dll with some functions defined so that i can import from other applications.
how can i import the same functions of vc++ in my c# applications so that i can use those functions in c#.
i cant add refereces for my c# applications because the dll is in vc++.
how can i achieve this.
when i add refereces it says like ..................

Could not load file or assembly 'file:abc.dll' or one of its dependencies. The module was expected to contain an assembly manifest.

plz help me out

[kenobewan]

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