XP Pro log-on problems after applying security update 899587.

Hi all,


When Windows applies the security update 899587 I have a problem logging-in. I have searched the Microsoft website for a solution with no luck, so I'm hoping you can help me:

After applying Security update 899587 to Windows XP (with SP2) I get the following message on log-in

Error in Isas.exe

Instruction at 0x71d0e334 referenced memory at 0x12fd0010. The memory could not be read.

szAppVer: 5.1.2600.2180

szModName: Kerberos.dll

Kerberos.dll is 5.1.2600.2698 15 June 2005

The instruction is always at the same address but the memory referenced varies from execution to execution.

Note that I have created the RequireAsChecksum registry entry as described in article ID: 904766.

The registry is set to 0 and the PC connects directly to the web.

If you need any more info, I'll try and get it!

Any help will be most appreciated

Cheers
Slizik