IMS are miniscan files. Create a .ims file with the following mini contents:
Device Name = COMPUTERNAME
Network - NIC Address = 001122334455
You could copy this file to your ldscan core folder. If computername already exists the device is updated, if not computername will be created.
In my environment i create at login:
Device Name = COMPUTERNAME
Network - NIC Address = 001122334455
Network - TCPIP - Address = 192.001.001.001
Citrix - Username = username
Citrix - Servername = servername
Citrix - Clientname = clientname
Citrix - Applikation = CitrixApp
Citrix - SessionID = 2
Citrix - SessionName = ICA-TCP#0
Citrix - LogonTime = 02/28/2014 09:10:25
Login Name = username
Be sure that your file is UTF8 encoded.