Hi Flex,   I've been waiting for someone more knowledgeable to suggest something, but looks like it is worth me giving my pearls of wisdom.  It might be an easy way for you to solve your dilemma.   I have trouble with Version Swapper when moving to a newer version of Visilogic.   My way of getting around this is that during each new upgrade install, I delete all the current Unitronics entries via remove programs.  After the new installation finishes, I copy the entire Visilogic_C folder an