System information

OMI 2.3.1 Release Notes
34 OMI 2.3.1 Release Notes
3. Reboot the PC.
4. Right click on My Computer and from the resulting popup menu, select Manage >
Device Manager.
5. From the Device Manager list of installed Cognex Hardware, right click the icon for
the respective Cognex Frame Grabber and from the popup menu select Uninstall.
6. Check whether the driver files listed in step 1 were removed by the uninstallation
and if not, delete the files from Windows Explorer.
Uninstalling Windows NT Drivers
After uninstalling OMI from a Windows NT system, make sure that the MVS-8100 driver
files were removed.
1. Check whether the following driver files were removed by the uninstallation and if
not, delete the files from Windows Explorer:
• MVS-8100 driver
\winnt\system32\drivers\v8100.sys
Uninstalling Windows 98 Drivers
After uninstalling OMI from a Windows 98 system, make sure that the MVS-8100 driver
files were removed.
1. Check whether the following driver files were removed by the uninstallation:
• MVS-8100 drivers
(OMI 2.1): \windows\system\8100.vxd and \windows\inf\other\Cognex,Inc.v8100.inf
(OMI 2.2): \windows\system\8100.vxd and
\windows\inf\other\Cognex Corporation8100.inf
(OMI 2.2 CR2, OMI 2.3): \windows\system32\drivers\v8100.sys
If these drivers were not removed, uninstall them as follows:
2. Search within the \winnt directory for all files ending in .inf that contain the string
"Cognex" in their contents. You can use the Search command in the Start menu to
do this. Delete these files and any similarly named files that end in .pnf. For
example, if you find the string "Cognex" in the file foo.inf, you would also delete the
file foo.pnf if it exists.
3. In the System control panel, select the Device Driver tab.
4. In the Other Devices section, highlight Cognex Frame Grabber 8100 and click
Remove. If this entry is not found, remove any entries in the Unknown Devices
section, if present.
5. Reboot the PC to let Windows 98 detect the frame grabber as a new device.