On my sandbox with BizTalk 2009 on it I wanted to download and install FileMon and RegMon. I got this message when I wanted to run FileMon.
There is tool now called Tool ‘Process Monitor’2.5. I got the wrong version of FileMon, but it showed me this tool is available now.
This UI contains views for Registry, FileSystem, Network, Process and Profiling Events. This 2.5 version has been released about three weeks ago. Excellent tool for monitoring what is going on your machine and very useful for troubleshooting an environment. For me my sandbox.