Hi Goran;
FWIW: I have the 64bit version of IM loaded on W7 and W2008R2 and the OLE control registers itself OK during the installation. However, you cannot use it with PB as its only 32bit in nature. So you would have to install the IM 32 bit version for that (which also installs for me OK on W7 & W2008R2).
FYI: Instead of the 64bit OLE route to use IM - I use the PowerShell approach which makes the IM version and bitness irrelevant to your PB application. :-)
Regards ... Chris