It is no longer maintained or updated. FreeBASIC can take QuickBASIC Code but it needs to be modified a bit.
Visual BASIC is emulated via Jabaco and converted to Java Runtine files. http://www.jabaco.org/ but it hasn't been maintained in a while either. It does VB 6.0 but misses ADO and other libraries needed for Data access, you have to use Java based ones instead with BASIC syntax.