In Microsoft System Center Configuration Manager 2007, you set the operating system deployment PXE service point response to incoming PXE requests by setting the IsActive embedded property.

IsActive has the following possible values.

Value Description

0

The PXE service point does not respond to PXE requests.

1

The PXE service point responds to requests.

To set the PXE service point response to PXE requests

  1. Set up a connection to the SMS Provider. For more information, see About the SMS Provider in Configuration Manager.

  2. Make a connection to the PXE service point resources section of the site control file.

  3. Get the embedded properties.

  4. Update the IsActive embedded property.

  5. Commit the changes to the site control file.

Example

The following example method sets the response for a PXE request based on the supplied Boolean value (allowResponse).

For information about calling the sample code, see Calling Configuration Manager Code Snippets.

Visual Basic Script  Copy Code
Sub SetAllowResponse(connection, 	_
					 context, 	 _
					 siteCode, 		 _
					 allowResponse)
 
	' Load site control file and get SMS PXE service point section.
	connection.ExecMethod "SMS_SiteControlFile.Filetype=1,Sitecode=""" & siteCode & """", "Refresh", , , context
	
	Query = "SELECT * FROM SMS_SCI_SysResUse " & _
			"WHERE RoleName = 'SMS PXE Service Point' " & _
			"AND SiteCode = '" & siteCode & "'"

	Set SCIComponentSet = connection.ExecQuery(Query, ,  , context)
					 
	' Only one instance is returned from the query.
	For Each SCIComponent In SCIComponentSet

		 ' Display SMS PXE service point server name.
		 wscript.echo "SMS PXE Service Point Server: " & SCIComponent.NetworkOSPath								

		' Loop through the array of embedded property instances.
		For Each vProperty In SCIComponent.Props
		
			' Setting: IsActive
			If vProperty.PropertyName = "IsActive" Then
				wscript.echo " "
				wscript.echo vProperty.PropertyName
				wscript.echo "Current value " &  vProperty.Value			 
			
				' Modify the value.
				vProperty.Value = allowResponse
				wscript.echo "New value " & allowResponse
			End If
 
			 
		Next   

			 ' Update the component in your copy of the site control file. Get the path
			 ' to the updated object, which could be used later to retrieve the instance.
			 Set SCICompPath = SCIComponent.Put_( , context)
	Next
					
	' Commit the change to the actual site control file.
	Set InParams = connection.Get("SMS_SiteControlFile").Methods_("CommitSCF").InParameters.SpawnInstance_
	InParams.SiteCode = siteCode
	connection.ExecMethod "SMS_SiteControlFile", "CommitSCF", InParams, , context

End Sub
C#  Copy Code
public void SetAllowResponse(
	WqlConnectionManager connection, 
	string server, 
	string siteCode, 
	bool allowResponse)
{
	try
	{
		// Get PXE properties.
		IResultObject ro = connection.GetInstance("SMS_SCI_SysResUse.FileType=2,ItemName='[\"Display=\\\\" + server + "\\\"]MSWNET:[\"SMS_SITE=" + siteCode + "\"]\\\\" + server + "\\,SMS PXE Service Point',ItemType='System Resource Usage',SiteCode='" + siteCode + "'");

		Dictionary<string, IResultObject> embeddedProperties = ro.EmbeddedProperties; // Get a copy

		embeddedProperties["IsActive"]["Value"].BooleanValue = allowResponse;

		ro.EmbeddedProperties = embeddedProperties;
		ro.Put();
}
	catch (SmsException e)
	{
		Console.WriteLine("Failed to set response for PXE request: " + e.Message);
		throw;
}
}

The example method has the following parameters:

Parameter

Type

Description

connection

  • Managed: WqlConnectionManager

  • VBScript: SWbemServices

A valid connection to the SMS Provider.

context (VBScript)

  • VBScript: SWbemContext

A valid context object. For more information, see How to Add a Configuration Manager Context Qualifier by Using WMI.

server

  • Managed: String

  • VBScript: String

The Configuration Manager server.

siteCode

  • Managed: String

  • VBScript: String

The Configuration Manager site code.

allowResponse

  • Managed: Boolean

  • VBScript: Boolean

The response type.

true if the PXE service point responds PXE requests; otherwise false.

Compiling the Code

The C# example has the following compilation requirements:

Namespaces

System

System.Collections.Generic

System.Text

Microsoft.ConfigurationManagement.ManagementProvider

Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine

Assembly

microsoft.configurationmanagement.managementprovider

adminui.wqlqueryengine

Robust Programming

For more information about error handling, see About Configuration Manager Errors.

Security

For more information about securing Configuration Manager applications, see About Securing Configuration Manager Applications.

See Also


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