Install Proparse first

Download Proparse

Prolint is based on Proparse, the parser for Progress sourcecode created by Joanju.

Prolint release 74 does not work with Proparse.DLL anymore, instead it requires Proparse.NET.
You can download Proparse.NET from www.joanju.com/proparse.

Proparse.NET comes as a zipfile with three .NET assemblies in it.
You need to put those assemblies in a location where the Progress session can find it, and you also need to specify the "proparse.net" assembly in the file "assemblies.xml" that is used by the Progress session.
If that does not make sense to you (it didn't to me, to be honest) then please read http://www.joanju.com/proparse/assemblies_notes.php for a detailed description.

Tip: if you installed Prolint release 74, then you can remove the old "proparse" directory that was required for Prolint 73. Unless you want to keep it, of course.