Invalid Operation Error occurs when trying to open Cyrious because the path for the Borland Database Engine is either corrupted or not pointing to the correct location. Fixing this issue requires a little confidence in dealing with the Computer's registry. If you are not comfortable editing the registry, please contact Cyrious Tech Support for assistance. If you want to attempt this but would like a backup of your registry (step 3), once you open the registry, Right Click on My Computer and click Export. Save this to your desktop. If you have messed up your registry, you can just double click on the export and it will reinstall it back to where it was before starting.