Gebhard,actually both Scandisk and Defrag do have command line switches:
Defrag:
x:      single drive letter
/all     defrag all local fixed drives
/F      defrag files and free space
/U       defrag files only
/Q     defrag free space only
/concise        details hidden
/detailed     details displayed
/noprompt   don't display and stop for messages

Scandisk:
x:      single drive letter
/A      check all local fixed drives
/N      noninteractive - run and close automatically
        (still displays messages, though)
/P      preview.  reports errors, but does not fix them

Hope this helps

On Thu, 07 May 1998 03:55:39 GMT, blucher@usa.net (Gebhard Blucher)wrote:
>I recently installed the Task Scheduler that came with IE4 and was
>wondering how I could get it to work properly.>
>I can add a new task and when the time comes, the program starts up;
>however, the programs don't properly execute.>
>For instance: I have as my two scheduled tasks, Scandisk
>(scandskw.exe) and Disk Defragmenter (defrag.exe). Both programs start
>up, but neither actually do anything unless I am there to press the
>appropriate buttons (ie: what drive should I "defragment/check for
>errors" and "start"). Also, neither seem to support any command line
>arguments like the old DOS defrag & scandisk apps could (I used to
>automate these to processes with a batch file containing all of the
>relevant arguments).>
>I had assumed that the Task Scheduler had some sort of "macro-like"
>functionality. Otherwise, it's not very useful is it? Am I missing
>something really basic here?>>Any help would be appreciated. Thanks.>>- GB
Gerd Ziran