CROR8 drivers after uninstalling Crystal Reports

[MJD500]

I've uninstalled Crystal Reports from my server and I am trying to remove CR drivers which now say (Not marked) in the version and company columns of the ODBC Data Source Administrator. When I try to remove the CR driver from the System DSN, I get the following error: The setup routines for the CR Oracle 7 ODBC driver could not be loaded due to system error code 126. I click OK and I get another message
"Could not load the setup or translator library. I get the same error if I try to remove the CR Oracle 8 also.

How can I remove these from the this window now that I've uninstalled
everything?

Thanks

Jocelyne