I have an AtmelISP programmer application for win9x and NT. It uses the parallel port to connect to the SPI pins, and can also trigger a reset of your ISP port has a connection to allow it.

The program was designed and developed by me for the convenience of rapid and "click reduced" programming of parts. A part can be programmed or re-programmed with one click. It automatically re-loads the latest version of the code to be downloaded, which is very nice when prototyping - you don't have to click through the "open file" dialogs each and every time you program.

It has not been sold except as part of a documentation package for the entire design of the projects I have worked on, but I am looking into how I can sell this program and a similar one for the Philips/Temic P89C66x and Rx2 family.