Microsoft is not making any money off Classic VB anymore, and there is a lot of libraries and source code examples for it.
I made my living writing in Classic VB in the 1990s and up to 2002. It was easy to learn because it was like every other form of BASIC from the 8 bit era. VB.Net changed things and made it more like Java.
For those who have Classic VB projects and want to convert it to run on JRE look at Jabaco which can convert some Classic VB code to a JAR file. It is like Java based on Classic VB but misses some parts of Classic VB so you have to convert some code.