Thanx for your response. The reason for wanting to use regex is that the XML being parsed is of no interest to the program (a message handler) I am merly passing this from one system to another (occasionally connected P2P devices). The format and content never change and the footprint and memory capabilities of the device are very limited. Even nanoxml is a bit heavy here. All I am really looking to do is to replace a value "Update" with the cutrrent time or in some cases a session id.