What specific or behavior are you experiencing? What year and model of car are you trying to diagnose?
: Fixed the 0xc0000005 access violation error that occurred upon startup for many Windows 10 and 11 users.
: Windows blocks the software from modifying system files or accessing USB ports. Step-by-Step Fixes for OPCOMFUT V29.EXE opcomfut v29exe fixed
A version usually means:
If you have the corrected file but are still having trouble, follow this workflow to get your Opcom interface working: What specific or behavior are you experiencing
If OPComFUT reports an "Unknown PIC" error when you try to connect, it suggests a deeper hardware-level corruption where even the bootloader restoration fails. In this case, the only remaining solution is to use a dedicated hardware PIC programmer, such as a PICKit 2 or PICKit 3. These devices can write directly to the PIC18F458 chip's memory, bypassing the need for a bootloader entirely. However, for a single, inexpensive clone cable, the cost and effort of buying a programmer often make it more practical to simply purchase a new interface.
: If using a newer version of Windows, set the file's compatibility mode to Windows XP or Windows 7. : Windows blocks the software from modifying system
Also, the title says "fixed," which implies a resolution. So the article should guide users through identifying the problem and applying the fix. Emphasize step-by-step solutions. Maybe include how to check for updates, run the application in compatibility mode, or adjust system settings.
Opel and Vauxhall diagnostic enthusiasts often use clone interfaces. However, changing firmware versions (such as moving between v1.45, v1.70, or v1.99) can frequently damage the underlying hardware framework.
Connect your broken OP-COM interface to your PC via a USB cable.