Well that explains it. Eventually I hope to launch a 64-bit version of CP, but it will not be for awhile. I expect maybe this summer.
By the way, have you considered installing the 32-bit version of Office? A strong case can be made for doing so. This is even what Microsoft recommends. Apparently, according to Microsoft, the 64-bit version offers no obvious performance improvement compared to the 32-bit version. The only reason they claim to install the 64-bit version is if you use Excel spreadsheets that are larger than 2gb.
I have posted two links below from the Microsoft website that discusses this topic in detail.
The first website provides the following guidelines for which version to install.
The recommendations for which edition of Office 2010 to install are as follows:
If users in your organization depend on existing extensions to Office, such as ActiveX controls, third-party add-ins, in-house solutions built on previous versions of Office, or 32-bit versions of programs that interface directly with Office, we recommend that you install 32-bit (x86) Office 2010 (the default installation) on computers that are running both 32-bit and 64-bit supported Windows operating systems.
If some users in your organization are Excel expert users who work with Excel spreadsheets that are larger than 2 gigabytes (GB), they can install the 64-bit (x64) edition of Office 2010.
The second website also explains that if users install the 64-bit version of Office, then they will also lose compatibility with some features of other Microsoft products. For example, the website states ...
If you install the 64-bit version of Office, certain Microsoft Office Communicator 2007 features that involve integration with Outlook are lost. For example, you cannot right-click a Communicator contact to schedule a meeting, send an e-mail message, or find previous conversations.
Anyway, it might be something to consider.
Once I have more details regarding the release of a 64-bit version of CP, then I will post a reply to this thread.