Sub DeleteMaintenanceWindowFromCollection(connection, 		_
										targetCollectionID, _
										targetServiceWindowID)
									 
	 ' Get the specific collection settings instance.
	Set collectionSettingsInstance = connection.Get("SMS_CollectionSettings.CollectionID='" & targetCollectionID &"'" )
		
	' Populate the local array list with the existing service window objects (from the target collection).
	tempMaintenanceWindowArray = collectionSettingsInstance.ServiceWindows 

	' Create new working copy of the array, to resize and eventually copy elements to.
	tempWorkingArray = tempMaintenanceWindowArray

	' Resize the working copy of the array an element smaller than the original.
	ReDim PRESERVE tempWorkingArray (Ubound(tempMaintenanceWindowArray))

	' Create a counter to assist in addressing each array element.
	arrayCounter = 0

	' Create a variable to help determine whether the maintenance windows exists.
	foundMaintenanceWindowToDelete = false

	' Enumerate through the array to access each maintenance window object.
	For Each maintenanceWindow in tempMaintenanceWindowArray

		 ' If the target service window ID matches the one passed into the function, do not add it to the new array.
		 ' The maintenance windows that do not match the one passed into the function are added to the working array.
		 If maintenanceWindow.ServiceWindowID = targetServiceWindowID Then	
		 
			foundMaintenanceWindowToDelete = true
		
		 Else	 
											 
			' Add the service window object to the temporary array / array element.
			Set tempWorkingArray(arrayCounter) = maintenanceWindow 
	
			' Increment a counter for adding maintenance window objects to individual array elements.
			arrayCounter = arrayCounter + 1  
	
		 End If
		 
	Next
  
	' If the target service window ID was found, then finish processing and save the collection settings instance.
	If foundMaintenanceWindowToDelete = true Then

		' Replace the existing service window array from the target collection with the working array that does not includes the service window being deleted.
		collectionSettingsInstance.ServiceWindows = tempWorkingArray
	
		' Save the new values in the collection settings instance associated with the collection ID.
		collectionSettingsInstance.Put_
		
		' Output success message.
		wscript.echo "Maintenance Window " & targetServiceWindowID & " deleted."

	Else

		' Output failure message.
		wscript.echo "Maintenance Window " & targetServiceWindowID & " not found."

	End If

End Sub

public void DeleteMaintenanceWindowfromCollection(WqlConnectionManager connection, 
												string targetCollectionID, 
												string serviceWindowID)
{
	try
	{
		// Create a new array list to hold the service window objects.
		List<IResultObject> tempMaintenanceWindowArray = new List<IResultObject>();

		// Establish connection to collection settings instance associated with the target collection ID.
		IResultObject collectionSettings = connection.GetInstance(@"SMS_CollectionSettings.CollectionID='" + targetCollectionID + "'");

		// Populate the array list with the existing service window objects (from the target collection).
		tempMaintenanceWindowArray = collectionSettings.GetArrayItems("ServiceWindows");

		// Enumerate through the array list to access each maintenance window object.
		foreach (IResultObject maintenanceWindow in tempMaintenanceWindowArray)
		{
			// If the maintenance window ID matches the one passed in to the function, delete the maintenance window.
			if (maintenanceWindow["ServiceWindowID"].StringValue == serviceWindowID)
			{
				tempMaintenanceWindowArray.Remove(maintenanceWindow);
				Console.WriteLine("Deleted:");
				Console.WriteLine("Maintenance Window Name: " + maintenanceWindow["Name"].StringValue);
				Console.WriteLine("Maintenance Windows Service Window ID: " + maintenanceWindow["ServiceWindowID"].StringValue);
				break;
		}
	}

		// Replace the existing service window objects from the target collection with the temporary array that includes the new maintenance window.
		collectionSettings.SetArrayItems("ServiceWindows", tempMaintenanceWindowArray);

		// Save the new values in the collection settings instance associated with the Collection ID.
		collectionSettings.Put();
}

	catch (SmsException ex)
	{
		Console.WriteLine("Failed. Error: " + ex.InnerException.Message);
		throw;
}
}