Always get approval before using this tool.
The OcxReg tool is used frequently when (for whatever reason) a registry value is corrupted. This happens relatively often in Eaglesoft, and the solution is typically to run this tool.
It should be noted that this utility can remove user account preferences, so copy the user.config file in the Patterson folder inside AppData\Local before doing so.
This tool is a go-to for a lot of Patterson Technicians when the program is throwing frequent errors when opening/accessing the schedule and other features. Close out of Eaglesoft and go to C:\Eaglesoft\Shared Files and run the OcxReg application.
To complete the process, restart the machine and see if the error returns.