Something quite easy, not necessary done every day, but that could be usefull in some cases... I just wonder that the method was not static. This post gives the solution:

This post describes the steps to follow in order to compile a C++ project created under VS2005 (or even VC6), and to migrate it to a VS2010 .vcxproj one, but keeping VS2005 as compiler (v80 configuration in the General tab, Platform Toolset entry of the project properties).