Regarding your question-Please see information taken from page 30 of the Image Assist user guide (link to doc below also)   Can I create an ISO version of the ImageAssist USB Drive? Yes. You can create an ISO version of the ImageAssist USB drive by using the /ISO switch from the command prompt. The ImageAssist ISO file Dell_RESTORE_ISO_1.iso, is saved at the root of the C:\ drive.    [URL]   Please contact your own IT regarding the internal question of locating the ISO  Thank you.   
Hi, I'm new to image assist and I was wondering if I could create an ISO instead of a bootable USB of the Image assist tool.  I was hoping I could have this Dell Image Assist ISO anywhere on my network and boot from it remotely. Then I could map and point to where my image is located and image a machine.
Create an Image Assist bootable ISO as opposed to a bootable USB