While I cannot speak on behalf of the plug-in developers, my approach would be to use vCO on a Windows based system and install Microsoft's Directory Service Tools, then try to come up with an appropriate command line approach from the prompt. Once I've identified the proper syntax of dsmod.exe, dsquery,exe, dsdel.exe, etc... I would incorporate that command line into my vCO workflow using the "command" object.
Joerg has a nice post here to describe how to work with command line utilities from vCO: http://www.vcoportal.de/2011/08/small-but-useful-command-line-tools-for-vco-workflows/