Version number of a dll in .NET

Question

Given the following:

string file = @"c:\somepath\somefile.dll"; 

How can I find the file and product version numbers of that DLL using .NET?

The dll can be either native or managed.

Thanks.

Answer 1

Yes, using System.Diagnostics.FileVersionInfo.

string fileVersion = FileVersionInfo.GetVersionInfo(file).FileVersion; string productVersion = FileVersionInfo.GetVersionInfo(file).ProductVersion; 

Be advised that the file version of an assembly could be different from its assembly version. The assembly version is part of the assembly's identity.

Answer 2

I don't know about native dlls but with managed dlls it works like this:

System.Reflection.Assembly.LoadFile(file).GetName().Version 

EDIT: I think you can read the version info in C with GetFileVersionInfo()...