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Installing PS11.1 and PS13 on the same system


Does anyone have any advice on installing process simulate v13 standalone on a machine with an existing install of process simulate v11.1 eMserver?


We would like to use the updated functionallity of v13, but a decent amount of our customers require work done in v11.


We tried installing v13 standalone using the normal installer, but it ended up breaking the v11 install. Would post a bunch of errors on launch. Thankfully just uninstalling v13 made v11 work again.