Andreas, I did a quick (minimal) bit of checking on the internet, and it "appears" the problem is the pipe. MKS must spawn a new process when it sees a pipe, and that is causing the problem. If you can re-write the script without the pipes (which might be difficult) it should work. Here's a link about a similar problem. http://www.kilala.nl/Sysadmin/index.php?id=741 I hope this helps. Happy New Year. David Johnson in '08 "He's constitutionally qualified!" _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave