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Hello Frank, I believe that SolidWorks did use to supply a connector for Pro-E which offered check in/check out functionality within the Pro-E application, but you'd need to get information from a SolidWorks reseller or SolidWorks themselves about it.

Kind regards,

Prasad

Why do you keep deleting the title and body of their posts?  This helps no, zero, zilch, nada one.  Especially if someone has the same "question" later on down the road.