I opened a project in Cubase 6. Added HSO as a virtual instrument. Closed program. Next time I attempted to open Cubase. system froze. On restart error message. “The server threw an exception.” When I try to start the Elicenser it gets stuck looking for elicensers. No Cubase. No Elicenser. Cubase 6 does not open. Cubase 5 does not open.
Funny thing is if I put the E-licenser in my laptop everything opens fine.
Pray for me folks. Its getting hot in here! 
If you suspect HSO then remove the dll file (hso.dll) from the VST directory where it is installed (e.g. C:\Program Files (x86)\VstPlugins).
If that does not help reinstall the eLicenser software.
The usb E-licenser key is not broken because you can use it with your laptop so this must be a software problem.
I wandered around lala-computer-fixing-land then reinstalled the E-licenser. Many thanks. 