Run the program and in the address bar paste:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_CMDSERVICE\0000
Then click the Go button and the program will look up that key and select it.
Now, in the right hand pane, rightclick the line that starts with "Service"
and choose Delete.
You will probably get a prompt saying Access Denied
If so Rightclick the key in the lefthand-pane and choose Properties.
On the properties screen you will see a button labelled Take Ownership.
Press that button and after the Success message go back to the righthand screen and try to delete the "Service" line again.
Let me know what happens.