Its definitely not normal for other stuff to be in that menu. If you are seeing other items in that menu there are two possibilities. Either you have an old version of VST scan somehow or your inventory was not reset and rescanned. Please report back if you still see this after resetting the inventory.
If anyone can reproduce this please send an export of your registry for this key. It will reveal why this is happening.
X64 users:
HKEY_CURRENT_USER\Software\Cakewalk Music Software\SONAR Producer\Cakewalk VST X64
x86:
HKEY_CURRENT_USER\Software\Cakewalk Music Software\SONAR Producer\Cakewalk VST