Problem with registration of DLL

Hey
I am trying to run in the command line the regisration of a DLL :

C:\regsvr32 c:\Release\MyProg.dll

Since we converted the solution from vs2008 to vs2010 we are getting the following error:
Attachment 31897

I been reading on this error and as I understand the project doesn't generate manifest .

I wonder why only now on vs2010 does it mather ?
(The project type is makeFile project)

How can I solved this issue ?

Thanks a lot

Did you read MSDN?