Workgroup PDM - has anybody created an alternative?

Workgroup PDM has been working fine for us. We use WPDM for revision control of SW, Office, PDF's and AutoCAD drawings.  That's it.  We are not interested in workflows and extras that we will not utilize.   I have heard and understand the arguments for moving to PDM Standard.

Is there a simple WPDM-like solution?

SolidworksWorkgroup Pdm