Easy GIS .NET uses a native DLL written using VS C++2010.

If you receive a runtime error that the application can not load geomutil_lib.dll or geomutil_libx64.dll you will need to install the Microsoft Visual C++ 2010 SP1 Redistributable Package

XP/Vista/Windows 7 32bit
http://www.microsoft.com/download/en/details.aspx?id=8328

Windows 7 64bit
http://www.microsoft.com/download/en/details.aspx?id=13523
