I've got dgate (1.4.16, build Mon Jun 24 09:35:20 2013, bits 64) running on CentOS 6.4, and part of my configuration is intended to pass the accession, StuInsUID, and SerInsUID to an external script for Key Images series. Here's the relevant ImportConverter:
The equals test seems to be satisfied, as destruction occurs, but I see nothing for the system call, nor any error.
Code
Is the "system" ImportConverter command supported?