Yes, you can hide any distribution list in Exchange with 2.4.6 build 102 or later. If the system was upgraded instead of a new install you may need to turn on the registry key that allows hidden objects. There are two seperate keys, one for hidden subscribers and one for hidden distribution lists. Check out this post for more:
There is a tool for changing Unity Registry Settings available on the www.answermonkey.net site. It's handy to use for making such edits since it will verify you are running the right version & it avoids typical regedit pitfalls such as spelling mistakes, wrong value type, etc. Highly recommended, check it out!
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.