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SYSTEMS MANAGEMENTFigure 3. Wbemtest object editorFigure 5. Wbemtest output property editoradministrators should click the Save Property button to return tothe object editor. They should then click the Save Object button tosave the changes, and click the Execute Method button to return tothe Execute Method dialog box, where they can click the Execute!button. If this execution works, administrators will see a successfulmessage pop-up window. They can click the Edit Out Parametersbutton in the Execute Method dialog box to bring up the outputproperty editor screen (see Figure 5). Administrators should scrolldown in the Properties list, select the ReturnValue property, andclick the Edit Property button to read the return value from themethod. The value of the ReturnValue property provides informationabout the WMI method. Figure 6 explains the return values. Onceadministrators have looked up the return value, they can cancel allthe way out and click the Exit button to quit wbemtest.Identifying symptoms and problem areas for WMIThis section discusses configuration and permissions that arerequired for successful remote updates.Minimum WMI permissionsBefore the remote update feature can run, Dell OpenManage ITAssistant 7 requires the capability to create a process on the targetsystem. This process creation can be implemented through theCreate method of the WMI win32_process class.Process creation is performed using the CreateProcessAsUserapplication programming interface (API) while the provider (the WMIengine on the remote system) simulates the caller (the credentials theuser provided). To be able to call win32_process.CreateProcess,the wmiprvse.exe account requires the following privileges:Return valueDescription0* The WMI command was successfully executed.2 The administrator has invalid authentication rights. Please check that theperson whose credentials are being used has at least administrativerights on the remote system.3 There are insufficient privileges for WMI to execute processes on theremote system. Check that the following items are configured correctly:the privilege “Replace a Process Level Token” in the Local SecuritySettings must grant access to the Local Service and the Network Service;and the Local Security Settings, WMI Security Settings, and any othersecurity settings that deviate from the default settings must be set to default.8 An unknown error was returned from the Create method of the WMIwin32_process.9 The path of the remote Dell OpenManage Server Administrator CLIexecutable that is attempting to execute on the remote system is invalid.Make sure that omexec.exe is in the default path of the remote system.21 An invalid parameter was passed into the Create method of the WMIwin32_process.*If the return value is 0, administrators should go to the remote system, verify that the ping is running in the taskmanager, and then stop the ping.Figure 4. Wbemtest Property Editor dialog boxFigure 6. Wbemtest return values that help verify WMI commands22DELL POWER SOLUTIONS Reprinted from Dell Power Solutions, August 2005. Copyright © 2005 Dell Inc. All rights reserved. August 2005