The Inactivity Timeout parameter looks to be have been introduced with vSphere 5, it will not work for previous releases of vSphere.
I am out of the office and will be returning on July 9th. I will have limited availability to email.
That's a good idea. The feedback and your article will help a lot.
I appreciate your work.
I've done some limited testing. It seems that this setting is ineffective when vCenter Client 2.5 and vCenter Client 5.0 client are installed on the same machine. On machnies running just the vCenter Client 5.0 the timeout setting worked correctly. Can anyone else confirm that?