On my work machine the IT folks added Powerpoint 2003 after I already has Powerpoint 2010. Now for my work I need both versions (actually I have 3 2003, 2007, and 2010) because the version of the client deliverable depends on what the client has. Now when I code in VBA in Excel I need to create a Powerpoint presentation but when I go to add the Powerpoint reference the only one on the list is 2003. Now I know that I can add the 2010 version but when I re-open the workbook the reference for Powerpoint reverts back to 2003. This is good for deployment because for this particular application some of the client will be in 2007 and some in 2010. But for development, is there a way to make Powerpoint 2010 the "current" version Of Powerpoint on my machine without un-installing everything and then re-adding it all back in the correct order?