I'm looking for a way to be able to select a drawing from a list of drawings starting with STH-*, and being able to preview these drawings. I thought the command below could be used; (dos_dwgpreview "Select a file!" (strcat H_cadprg "bib\STH-*.dwg") ) But this does not work. But it cannot filter the STH-*.dwg's Has anybody got an idea how this can be accomplished? M