Thanks for that.
Problem is, I lost my main development machine some time back (== it died), and with it, I lost the VM for Windows Server 2003, so I cannot effectively test the installation on IIS6.
BUT, I thought I fixed the problem you are reporting. Is this the exact same symptom that you saw previously? The changes I made to the MSI ought to have fixed that.
The IIRF x64 MSI that has the fix is like this:
04/25/2011 04:35 PM 3,631,104 Iirf2.1-x64.msi
Can you make sure this is the one you are trying to install, when it fails with that "wantstate" message?
If this is the one you're using, then I guess there is a problem with the build system on my end. Maybe I am not pushing out the fixed build, somehow.
let me know.