Internet Explorer 6 crashes when opening websites after upgrading Windows with the security update 942615 which was part of the December patch update of Microsoft. My personal suggestion would be to make the switch to Internet Explorer 7, Firefox or Opera and forget about this problem and be more secure at the same time.

If that is not wanted or possible at the moment you can fix the bug the following way, props to Bink for posting the solution.

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\
3. On the Edit menu, point to New, and then click Key.
4. Type FEATURE_PROTECT_DECOMPRESSION_FILTER_FROM_ABORT_KB942367, and then press ENTER.
5. Right-click FEATURE_PROTECT_DECOMPRESSION_FILTER_FROM_ABORT_KB942367, point to New, and then click DWORD Value.
6. Type an asterisk (*), and then press ENTER.

Note The asterisk (*) represents any process name that uses the Urlmon.dll file. If you want to make this change for an individual application that uses the Urlmon.dll file, use the name of that application instead of the asterisk. For example, use Appname.exe.
7. Right-click the asterisk, and then click Modify.
8. In the Value data box, type 1, and then click OK.
9. Exit Registry Editor.

My advise would be to switch from Internet Explorer and Outlook to applications that do not have that many serious flaws and are less of a security risk to the user. Those would be Firefox or Opera instead of Internet Explorer and Opera Mail or TheBat mail client instead of Outlook Express. Just search in google for the above terms and you will find the manufacturers website.