Using APC in W2K results in "The instruction at 0x0040100d reference memory at 0x93e277db. The memor

I tried to use the method outlined in” to call a user-mode
function from a W2K file filter driver.

If I place the following codes (as mentioned in the captioned article), of
course correctly registered with a user app, in the IoDeviceControl
routine, it will work fine.

Apc = ExAllocatePool(…)

When I place them into FileHookRoutine(s), where I must integrate the
codes to, the captioned error occurs. Also, “IRQL_NOT_LESS_OR_EQUAL” error
appears during shutting down the machine.

Please help me to sort out the problem.

Thanks a lot