Similar to this question, but what I want is a check in / out feature that is built in to Windows File Sharing. The server it would run on is a Windows SBS 2011 server, and the clients will all be Vista or 7. Microsoft Office is a small set of files that they need access to, but that is not the main concern
closed as off topic by EEAA, John Gardeniers, Michael Hampton, Ward, Scott Pack Sep 25 '12 at 0:22
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There isn't any check in/check out feature of the File Server role that I'm aware of but Sharepoint in SBS 2011 has that feature. You would need to migrate your documents to a Sharepoint Document Library in order to to make use of it.
I'm not positive but this Sharepoint capability might be limited to Microsoft Office documents.