You want Don Starr's Win92 program. It's a free and amazingly good program. Download it
here.
FYI: if you haven't already gotten it, you want the grey cable from Radio Shack, P/N 20-289, about $25. The black cable, P/N 20-049, will not work. I was just in the local RS today, and it's funny, the black cable specifies on the back which models it works with by their common number, such as the PRO-2017, 2018. On the back of the grey cable, it specifies the models by the RSU number: 20-522 (PRO-92) 20-501 (PRO-83), etc.
Mark S.