I've searched everywhere for this but can't find another instance so assume it's not already covered.

I am running an almost new Windows 7 64 bit machine (Professional, SP1).

I am trying to upgrade IE 8 to 9 (64 bit version) but the installer crashes as soon as it starts. This happens whether I let Windows pull the update or download and install manually.

The same happens occasionally just trying to open files in an Explorer window - Explorer is forced to restart.

The reason I think this is a Spybot issue is the error signature:

Problem Event Name: BEX64
Application Name: ienrcore.exe
Application Version: 9.0.8112.16421
Application Timestamp: 4d7626fe
Fault Module Name: SDHook64.dll
Fault Module Version: 2.0.5.1
Fault Module Timestamp: 4e36cc5e
Exception Offset: 0000000000033930
Exception Code: c0000417
Exception Data: 0000000000000000
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 2057
Additional Information 1: 7419
Additional Information 2: 741901578398a307e6a837269f6111fd
Additional Information 3: d203
Additional Information 4: d2030bb92a142dc528dfb3bf392c2954

The fault module file - SDHook64.dll - only exists on my machine in the Spybot library folder.

Searches have tried to steer me to problem with a dll file called SBHook64.dll involving Kaspersky A/V 6 (which I do run) but that file does not exist on my system.

Does anyone know why this Spybot library file might be causing these program crashes? Or has Windows pointed the finger at an innocent file?

Thanks.