An Update..
I found another copy of Ver 5.53 source included in the Ver 6.03 source download. After copying them over, the PJT files seems to be fixed. However, I am still getting the 'Retrieving the COM class factory for component with ' when I try to debug in VS.
I found another copy of Ver 5.53 source included in the Ver 6.03 source download. After copying them over, the PJT files seems to be fixed. However, I am still getting the 'Retrieving the COM class factory for component with ' when I try to debug in VS.