Microsoft has released MSN Messenger 4.0.1, an update to its instant messaging software for Mac OS X. Version 4.0.1 is “mandatory to ensure that all software accessing the service is using the most robust and current version available.” Microsoft has also released Remote Desktop Connection Client 1.0.3, an update to its software that allows users to connect to a Windows-based computer and work with programs and files on that computer from a Mac. Version 1.0.3 provides improved stability when users minimize the client window and when users copy and paste data from the client window to Mac applications. Stability is also improved for users of Mac OS X 10.3 (Panther) and later, and when the software is used on G5-powered Macs.