[JOB] Assuming you are on windows you can use the following code snippet to open e.g. a PDF file with it's associated application. ====== set pdf_file "C:/test.pdf" # the following code -does not- work on all PC's (?) ... # set command [list {*}[auto_execok start] {}] # exec {*}$command acrobat $this(exported_PDF_file) & # -works so far- # open a file (.xls, .pdf, ...) with its usual application: set command [list {*}[auto_execok start] {}] exec {*}$command $pdf_file & ====== <>