I am trying to attach the text file to the current run (In HP ALM 12.53), which is located in the "C:\\Temp" drive. But i am getting the following error at the step level in HP ALM (Executing the script from HP ALM).

Run Error:
You do not have the required permissions to execute this action.
Line (548): " objQCAttachments_Item.Post".

Function QC_AttachFileToTestRun(strFilePath)
Dim objQCAttachments, objQCAttachments_Item
Set objQCAttachments = QCUtil.CurrentRun.Attachments
Set objQCAttachments_Item = objQCAttachments.AddItem(Null)
objQCAttachments_Item.FileName = strFilePath
objQCAttachments_Item.Type = 1
objQCAttachments_Item.Post
Set objQCAttachments = Nothing
Set objQCAttachments_Item = Nothing
End Function