Exchange 2003 OWA and Vista’s Internet Explorer issues

We recently acquired a Microsoft Vista machine to aid us in testing its compatibility with our software. As we started to test a few things, we noticed that we had an issue with OWA; when replying to a message, we’d get what looked like a broken image in the area where you would type your message (see image below). After a little searching around, we found out that Internet Explorer in Vista strips out the Dynamic HTML Editing ActiveX control (KB 911829). Microsoft released a patch for this particular issue for Exchange.

NOTE: The patch must be applied on both the frontend and backend Exchange servers.

Below is a screenshot of the window before the patch is applied.

And a screenshot of the window after the patch is applied.