Surprise removal of PCI device with shared IRQ.

Hi
I have a PCI device powered from external source.
This device can be shut down without shuting the machine (surprise removal).

Problem:
My device shares an IRQ with other devices (USB2 host controller and network card).
Uppon power down and before windows gets the chance to remove my driver I get an interrupt from other devices on my IRQ.
This causes access to my HW which is dead at this time ===> I get a PCI read timeout which causes Machine check and a blue screen.

Trying to rceive notifications of this removal does not work since it take a few miliseconds until my driver knows about the removal and in that time I get few interrupts from other devices.

Trying to change IRQ to a unique number does not work with ACPI and APIC.

Is there any solution for this (insane) scenario ???

I work with Windows server 2003.

Your help is appreciated.
Sharon Katz