I had the same problem but this is how I got around it.
I installed Daffodil from codeplex (http://daffodil.codeplex.com/) and then opened my VC++ project in VS2010 (go through project upgrade routine). Right click on the properties of your project (not the solution) and go to the 'Configuration Properties', 'General' section. Change the 'Platform Toolset' to v60 and your project will now compile with the VC++6 compiler. Note: you must have VC++6 installed - see the Daffodil documentation. Now you can use the VS2010 IDE to compile all your VC++6 code!
SteveR