Vista x64, ESS Antispam and Windows Mail

[psychokilla]

My Windows Mail is crashing everytime I launch it with the Antispam integration enabled for Windows Mail/Outlook Express. It worked fine when I used it on Vista x32.

This is the listing of the "problem details" attached to the window when the program crashes :

{QUOTE->
Problem signature:
Problem Event Name: APPCRASH
Application Name: WinMail.exe
Application Version: 6.0.6000.16480
Application Timestamp: 4638fabd
Fault Module Name: StackHash_d79b
Fault Module Version: 6.0.6000.16386
Fault Module Timestamp: 4549d372
Exception Code: c0000374
Exception Offset: 00000000000c87b7
OS Version: 6.0.6000.2.0.0.256.1
Locale ID: 2057
Additional Information 1: d79b
Additional Information 2: dd955c1fdfade5ba33bec558d2de483e
Additional Information 3: 6494
Additional Information 4: 0b2a416e470b0f6c671a20cb57b176d7

Read our privacy statement:
http://go.microsoft.com/fwlink/?linkid=50163&clcid=0x0409
<-QUOTE}

If there is anything else you will need give me a shout.

[psychokilla]

I just found out that enabling the option in that same section titled "Disabled checking of unread messages upon mail client startup" stops Windows Mail hanging at startup. I presume this is a solution to a part of the same problem?