1. Perform a file search for the 'msdatgrd.ocx' file on your computer's hard drive. Look in the 'C:\Winnt\system32' or 'C:\Windows\system32' folders since most system files are stored there.
2. Copy the file from another computer running the same operating system and service pack installation if it is not found. Paste it into the system directory of the computer that is producing the 'msdatgrd.ocx' errors.

3. Click on 'Start' and then select 'Run.' Enter the command 'regsvr32 c:\Windows\system32\msdatgrd.ocx' or 'regsvr32 c:\Winnt\system32\msdatgrd.ocx,' depending on the name and path of your system folder. Press 'Enter.'
4. Reboot your computer to complete the registration of the 'msdatgrd.ocx' file.