frameworks are independent. you must have the framework the particular app was built against for the app to run.


while version 2, 3 or 4 is later newer and has more goodies then say 1. if the app was built against 1 having 2, 3 and 4 does you no good when trying to use that app. it expects, nay DEMANDS the presence of 1 (or 1.1) to work.


so as you list of old aps that havent been redone goes you may find yourself having 1/1.1, 2, 3.5 and 4 all installed.

 

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