Hmm, don't think I can help on this one. First, I am using SDT version 6. Second, I do not use VSS. Best I can offer is to suggest setting a breakpoint in your method on a line of code before the error occurs.

>Thanks for the interest Mark.
>SDT 5.1
>I am using a custom method "UpdateMetaData()" which is called from a toolbar button click. This method uses command line functionality to interface with VSS to checkin/out our DBC and the SDT meta data. In the case where the data is checked out, it is then copied into a distribution folder for modification. At which point I want to run the Stonefield explorer in order to make any modes.
>
>Regards