Yeah.... Mine's OK too. Matt, did you add any customized files to the delivered dataset or project folders? If you look at the Workspace Config dialog, does it look like all the TFDIR and ATFDIR variables are pointing to *only* the delivered locations

That seems to be a dead link... Anyhow, you are correct in that _USTN_TFROOT is a variable in itself, and not a hard coded value. However, it's the program side of the application, not the workspace, so I'd imagine it would be fairly consistent…