I recently posted an error I was receiving from the pre-agent during a
test deployment. The below listed error is apparently what the previous
post was referrring to. I didn't catch it before. Hopefully someone can
shed some light on this. Sure wish I could find a doc with all the
various errors possible within ZCM10.

Unable to load prerequisite class: DiskSpace.
System.InvalidCastException: No such interface supported
at System.Runtime.InteropServices.Marshal.ThrowExcept ionForHR(Int32
errorCode, IntPtr errorInfo)
at System.Management.ManagementScope.InitializeGuts(O bject o)
at System.Management.ManagementScope.Initialize()
at System.Management.ManagementObject.Initialize(Bool ean getObject)
at System.Management.ManagementBaseObject.get_Propert ies()
at System.Management.ManagementBaseObject.GetProperty Value(String
at System.Management.ManagementBaseObject.get_Item(St ring propertyName)
at ZENPreAgent.Prereqs.DiskSpace.GetHomeSpaceMbWin()
at ZENPreAgent.Prereqs.DiskSpace.check(PreReqProperti es props)
at ZENPreAgent.Prereqs.PrerequisiteChecker.doCheck()

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