How To Fix 1421 “ERROR CONTROL ID NOT FOUND” Error Code
Error 1421 typically occurs when you run Visual FoxPro 7.0 on your computer. It arises due to your PC’s failure to find a particular Control ID. This type of error can be caused by several factors such as a corrupted...

 Is your computer running out of disk space? Scan it for duplicate files right now and free up gigabytes in three simple clicks.
 Is your computer running out of disk space? Scan it for duplicate files right now and free up gigabytes in three simple clicks.