[mrtg] Inappropriate I/O control operation

[Petr Lázňovský]

Monitoring data via external script. Work OK if started from cmdline, but produce errormessage if run as service.
Have many other mrtg monitoring via external scripts and run as service, but those work OK.

W2k3, Perl 5.10.1, MRTG 2.16.2

Any ideas?

L. 

2012-05-14 14:07:55 -- 2012-05-14 14:07:53: WARNING: Could not get any data from external command 'C:\scripts\active_scripts\signatures_count.cmd'
Maybe the external command did not even start. (Inappropriate I/O control operation)