Attempts to run many of the command line SmartDisk commands return an error. E.g.
C:\Program Files\BakBone Software\NetVault SmartDisk\foundation\bin>smartdisk stop
Failed to execute 'C:\Program Files\BakBone Software\NetVault SmartDisk/foundation/bin/servicetool --stop --wait'
A file in the root of the system directory (C:\ is the default) called 'program' can cause program launching to fail.
Removal of this file should return the system to normal.