NirnSoft has a useful tool to view, edit, import/export Outlook AutoComplete information.
It can handle all versions of Outlook that support this feature, as well as the the information stored in a message store (be it Exchange or local PST).
Currently, Exchange/Outlook only supports client-side rules if you want to move messages to a specific folder, depending on which alias it's sent to. This means that the rule only works when Outlook is running, which is not always possible.
You can workaround the issue by creating a rule that checks for the content of the message headers. This type of rule can be created server-side and will always run when messages arrive on the Exchange server. By checking whether the alias is present in the message headers, you can easily create a rule that moves those messages to another folder.
When running a Windows 2008 (R1) Terminal Services, and you connect with a RDP 7.1 client and try to shadow another session, it may happen that both clients get disconnected.
KB2523307 tells us that this is caused by RemoteFX being active when a new client is used.
A hotfix is available to address the issue, and can be requested via the KB.
EDIT: for your convenience, I've attached the hotfix (English only!), at least until Microsoft requests its removal...
When using Desktop Slideshow in Windows 7 (a slideshow of desktop backgrounds), you can change the duration of the transition between two images with a registry hack.
You can remove (or manage) links in the Games menu through the registry. The key for this can be found at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\GameUX\Games.
For each entry there's a subkey named a CLSID. When browsing through the list, opening a CLSID reveals the actual title, path and some other settings of that entry. If you want to remove an entry, find the right entry by checking titles and/or paths, then delete that key.
A note of warning I read on the Avast Forums: if your Avast subscription runs out, the Exchange Information Store no longer starts and bails out with an error "failed to start virus scan". Very annoying indeed...
The Ringmaster software downloaded from Juniper Networks doesn't come with the help files included. They are available as a separate download and need to be integrated after installation. Unfortunately, it's not really clear where to put them.
Downloading the help files provides you with a html.zip file, containing a html folder with a bunch of html files in it. This folder has to be placed inside the help/ subfolder of where you've installed the Ringmaster software. The default path in linux is: /opt/ringmaster/help/ . When done correctly, you will be able to access the help files via the URL http://ip-of-your-server/html/ or by pressing F1 in the Ringmaster client.