Just to make you aware: The Vogons Community was able to provide some of the software sold on rloew's website in the past.
It has been archived on archive.org so it doesn't get lost:
https://archive.org/search.php?query=creator%3A%22Rudolph+R.+Loew%22
If you have bought some software still missing there, you can help extending that library. Just make sure to fill the creator field with "Rudolph R. Loew" so it gets added to that list.
I wanted to create a collection, but that's only possible with a minimum of 50 items. So we'll have to make due by going with the creator name.