In order to solve this error, I suggest you to go to Start, to type CMD.exe in the provided field and to open the application using Administrator rights. Type regsvr32 /u numberspincontrol.ocx press Enter, type regsvr32 /i numberspincontrol.ocx and press again Enter. Close the Command Prompt and try to run the utility. If this doesn't help, run Dll-Files Fixer. It is an application developed by Blaster Tarafından Hazırlanmıştır that will allow you to find and download the missing OCX file and correctly register it on your computer.