Failed to create process due to error '0x80070002 : The system cannot find the file specified. ', this workflow will be unloaded.

I recently was receiving this message on one of my monitored DC's....

Event Type: Error
Event Source: Health Service Modules
Event Category: None
Event ID: 21400
Date: 8/24/2011
Time: 9:08:02 AM
User: N/A
Computer: SERVERNAME
Description:
Failed to create process due to error '0x80070002 : The system cannot find the file specified.
', this workflow will be unloaded.

Command executed: "C:\WINDOWS\System32\cscript.exe" /nologo "C:\Program Files\System Center Operations Manager 2007\Health Service State\Monitoring Host Temporary Files 1\84\DiscoverVMMSelfService.vbs" {E68CED9E-FB3F-B856-E3D5-F3A91FCA395B} {72BEBFB5-0B16-F3BA-8B9A-281D81DBA0C3} SERVERNAME
Working Directory: C:\Program Files\System Center Operations Manager 2007\Health Service State\Monitoring Host Temporary Files 1\84\

One or more workflows were affected by this.

Workflow name: Microsoft.SystemCenter.VirtualMachineManager.2008.SelfService.DiscoveryRule
Instance name: SERVERNAME
Instance ID: {72BEBFB5-0B16-F3BA-8B9A-281D81DBA0C3}
Management group: SCOMManagementGroup

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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Turns out the issue was that cscript.exe was not in C:\WINDOWS\SYSTEM32.  Another issue could be that  Windows Server Support Tools are not installed to C:\Program Files\.