Public token key

Question

Hi
can any one tell me what is the functionality of public key token in assembly.............?

Answer 1

[DllImport( "filename.dll",EntryPoint="functionname")] public static extern int functionname(type parameter1,type parameter2...);

Answer 2

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csref/html/vcwlkPlatformInvokeTutorial.asp