Only if you choose to install this copy of DimPro. If you are already running the latest version, why would you want to install it all over again? Is DimPro 64bit any different than product version 1.5.0, file version 1.5.0.11? If not why bother with it?
On a related note (and I suspect I will be asking this when the product is officially released), it would be nice if someone from CW could confirm that Rapture 64bit in X2 is product version 1.2.2, file version 1.2.2.7. That could save some time and bandwidth.