Handling an issue where keyboard and mouse not working

If you cannot get the keyboard or mouse to work during remote control, try doing the following commands first on the teacher then on a problem student (if running it on the teacher doesn't resolve the issue):

Go to a command prompt as an administrator (right-click and run as administrator on Win7 or Vista machines).  If you are on 64 bit Windows Vista & Windows 7 PC's change the directory to c:\windows\sysWOW64, if not proceed normally.

Run the following command:

regsvr32 /u meinput

Reboot the system for this change to take effect.
Register the driver once more using the command below:

regsvr32 meinput

Then reboot the system and test the behavior.

If you are trying to eliminate a locked keyboard (due to driver conflicts, viper failing to remove the driver etc.) just run the first regsvr32 command.