Oh yeah -- that option is disabled on x86 Windows, since it is meaningless for local registry access, and we didn't anticipate the possibility of accessing a remote 64-bit registry view from 32-bit Windows. We'll see about testing and enabling that scenario. For now, you may need to use VBScript/WMI to access a remote 64-bit registry view from Visual Build on 32-bit Windows.
http://www.google.com/search?q=vbscr...egistry+64-bit