After somewhat more work than expected, a windows installer bundle has seen the light.
It is available for download at the files section.
I talk about light quite literally as the WiX installer tools used are called candle, light and paraffin. I did not use heat for a number of reasons.
One thing that resulted from this was a guide on how to use WiX. Or more a primer before reading the official tutorial at http://www.optimalbpm.se/wiki/index.php/WiX.