RESOLUTION
Windows XP
Update information
To immediately resolve this problem, download and install the following update for Internet Explorer 6 Service Pack 1:
http://www.microsoft.com/downloads/details.aspx?FamilyId=A463AA0A-B50B-453A-9803-EF6F7F4B451E
Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.
To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:
http://go.microsoft.com/?linkid=6294451
Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:
Help and Support
Prerequisites
To install this hotfix, you must have Microsoft Windows XP Service Pack 1 (SP1) installed.
For additional information about how to obtain Windows XP SP1, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack
All this info can be found here:
You may receive an error message in module Mshtml.dll and Internet Explorer quits when you run a custom Web program in Internet Explorer 6
But i would suggest a upgrade to IE7 and the use of IE7Pro as well. IE6 is nothign but trouble.