Hi Bill,
I'm seeing the same problem with Sonar 8.5 64bit on Vista 64. The VST scan isn't seeing either plugin.
After runnign the scan the plugin shows up in REGEDIT, but
HKEY_CURRENT_USER\Software\Cakewalk Music Software\SONAR Producer\Cakewalk VST X64\Inventory\c:/vstplugins/Vienna Ensemble Pro.dll
has the "isVst" flag set to "0", and has only two keys present.
All my other plugins have this flag set to "1", and have about 30 other keys in the entry.
This looks to be a problem with SONAR not liking the .dll structure for some reason.
I have NI Kore 2 on the same system, and it can see the 32bit VE PRO fine.
Can someone from VSL comment?