I'm running 64 bit Sonar Platinum but, for some reason some 32 bit plugins are showing up in my plugin browser. When I go into the Plugin Manager and select the 32 bit (X86) folders and click remove, nothing happens. They still show up and, will not go away. Has anyone else ever seen this? An ideas how to correct it?  

reset (PIM options).
rescan

Got all the 32 bit paths removed in the plugin manager except one. For some reason, this thing will not go away!
c:\program files (x86) cakewalk\shared utilities\ internal
Any ideas anyone??

That's where the ProChannel plugins would be located.

I don't think you can remove the internal path.  It's required and thus not removable.

I do not have 32bit installed and am not sure if it is normal for the 32bit PC module path to be in included in the 64bit scan path. Doubtful it serves any purpose. The reason it cannot be edited is the path is not in HKEY_CURRENT_USER\Software\Cakewalk Music Software\SONAR\Cakewalk VST X64\Paths, the location maintained by Preferences > File > VST Settings and the Plug-in Manager. In fact, the PC module path is not even displayed in Preferences (the preferred area for performing VST operations). The registry entry containing the PC module path is HKEY_CURRENT_USER\Software\Cakewalk Music Software\SONAR\Cakewalk VST X64\VSTInternalPath. Changes to VSTInternalPath requires regedit.