mikebcda Actually I think default installation folder in both cases uses version number as part of its name. Only possible problem I can see might be with registry entries (e.g., file associations).
leonardo Bob Vance wroteIs it possible? I am using jv16PT-2009, jv16PT-2010, jv16PT-2011 from different (renamed) folders, along side each other. I do not run them simultaneously but one at a time. Up till now without problems.