ADUserMon.exe
(Iomega)
Active Disk User Monitor. Background task installed when you install the full set of drivers for your Iomega Zip drive. This task supports the Iomega Active Disk feature which allows developers to produce Zip disk based software which will run, fully self-contained, immediately on insertion of the software Zip disk into the Active Disk aware Zip drive.
Recommendation :
In December 2002, to all intents and purposes Iomegas Active Disk is a dead technology the proliferation of CD-ROM drives on almost every PC has made sure of that. Active Disk is therefore a facility you can safely get rid of by disabling ADUSERMON with Startup Manager.