You have experienced a crash related to memory pool corruption.  You have been referred to Iomega Corp. because you currently have the IOMDISK.SYS device driver from Iomega installed which was loaded in memory at the time the crash occurred and because previous versions of this driver have been known to cause this type of problem.

Iomega Corp. is working closely with Microsoft to fix all of the memory pool corruption problems in IOMDISK.sys as quickly as possible but your help is needed to insure that all of the problems with this driver have been corrected and that the problem was not actually caused by a driver you have installed from another company.

Because this type of crash is extremely difficult to diagnose it requires additional diagnostic features to be enabled in Windows XP that will allow you to generate a new more complete error report to send to Microsoft which will help Iomega to fix this problem and also let Microsoft know if other drivers are causing any of these problems so they can contact them.

If you have enough computer expertise to be able to boot into safe mode by pressing F8 when booting your system, we encourage you to enable driver verifier using the instructions below after you have installed the latest version of the IOMDISK.sys driver by clicking on the executable in this package.

You should also send email to ocapcr1@microsoft.com so you can be notified when the final version has been released and when you can turn off driver verifier.  If you have a high level of computer expertise and are able to enable some other diagnostic features please send email to ocapcr1@microsoft.com and you will be contacted if additional assistance is needed.

Thank you for your assistance with this problem.  Your help is greatly appreciated by both Iomega and Microsoft Corp.

Instructions for Enabling Driver Verifier

Below are the instructions on how to enable driver verifier on the IOMDISK.SYS driver.  Before you enable this feature you need to fully understand how to boot your system into safe mode which will disable driver verifier.   While it is not expected that by enabling driver verifier that you will experience any problems in booting your system, there is however a very remote chance that this could happen and you need to fully understand how to boot into safe mode so you can disable it in case this does happen.

Warning:  Please be certain that you fully understand how to boot into safe mode before you enable driver verifier.  If you ever need to turn this feature off for any reason or because your system becomes unstable, you can boot into safe mode to turn it off.

   1. Click Start usually found in the lower left corner of the screen
   2. Click Run...
   3. Type cmd and press Enter
   4. Type verifier and press Enter
   5. A Wizard will now start to allow configuration of driver verifier.
   6. Click on the radio button next to Create custom settings (for code developers)
   7. Click Next
   8. Click on the radio button next to Select individual settings from a full list
   9. Click Next
  10. Click the checkbox next to Special pool and a checkbox will appear in the box
  11. Click Next
  12. Click the radio button next to Select driver names from a list
  13. Click Next
  14. Scroll down and Click the checkbox next to the IOMDISK.SYS driver name and a checkbox will appear in the box.  Note the driver version as it tells you what driver version you currently using.
  15. If you wish to enable Special Pool for other drivers which you strongly suspect may be causing the problem and have a high level of computer expertise, look for other drivers in the list that are not from Microsoft and then check the checkboxes next to those drivers.
  16. Click Finish

Driver verifier will now be enabled for all of the drivers specified and it will remain on until you disable it or boot into safe mode.  If you ever need to disable driver verifier you can follow he same instructions above to uncheck and disable special pool on the drivers selected.  If your system becomes unstable and you are unable to boot your system, you may first have to boot into safe mode by pressing F8 at boot time and then selecting Safe Mode before starting the Driver Verifier manager as described above.  You can either disable Special Pool checking for specific drivers using the above steps or you can select Delete existing settings from the initial dialog box to turn off all checking.