Okay after some research into the ImageMagick6 for use on the Windows Platform (Server 2003 / IIS6 or Apache)

The DLL method of using ImageMagick6 no longer works with any version of PHP past 5.04 (so may work still for some that are on the older versions - I'm not one of them nor care to be)

One of the main developers a guy by the name of Watson appears to be indisposed at the moment and has been for many months now.
The group appears to still work on the project but as of the last posting discussions on this no one has fixed the DLL support for PHP past 5.04

http://redux.imagemagick.org/discussion-server/index.php

Regardless, UBBT 7.2 does not support using the DLL method either as the code is expecting to use the executables.

If ever the ImageMagick6 does get updated to support PHP new versions then UBBT would also need to update / modify their code to support a more secure method of DLL usage.

That said using the executables requires that the %windir%\system32\cmd.exe be given rights to execute the calls to the other ImageMagick6 executables as well.
This is not a desired secure method, but don't forget that Linux is doing it as well on Apache. As long as your site is not overcome by some type of buffer overflow then it will be somewhat secure - it just is NOT a preferred method of implementation.

So given the proper rights to execute then ImageMagic6 should work just fine on Window Server 2003 with IIS6

If I get time I will write up an FAQ for setting this up.

I still need to review and give minimal permissions to everything and then document it so it could be a bit before I complete an FAQ.