Sysinternals, a tool collection for Windows. Especially the Process Explorer, choose show lower panen and then dll.
Even with Windows you can redirect the output and input of your shell commands.
Raise your Profile Quota
Every user may raise the quota for his user profile (as long as your privileges permit this)
Remote Shutdown of other computers
(requires appropriate permissions)
Start programs without taskbar
Windows Autostart Programs
See all Autostart programs in Windows
Get information about the running Windows System
# wmic os get Version
# wmic os get Caption
Microsoft Windows 7 Enterprise
# wmic os get
What annoys you in Windows
Deactivate caps lock key
You'll rarely need it, it annoys you often. This will make it work like the normal Shift key. See also How to Disable Caps Lock Key in Windows 7, 8, or Vista
Disable Alt Shift Shortcut to changes Languages
If you press Alt + Shift in Windows the default is to switch between German and English Keymap (at least in a German Windows). This is very annoying if you use for example Emacs where many Shortcuts include Alt + Shift. You can disable it like this
BIOS clock runs on UTC
Normally Windows changes the BIOS clock every time you change the timezone or for every daylight change. If you use more than one OS this is very annoying. Fix for this: WindowsLinuxDualBootTime.reg
Remote shutdown of another computer
(you need privileges for this)
Kill a program on another computer
RoboCopy, a tool to (automatically) copy files in Windows.
Example to automatically copy drive C to share m:
robocopy c: m: /r:0 /w:0 /e
Enter CTRL ALT DEL in a remote desktop connection
In a remote desktop connection you can enter CTRL ALT DEL via CTRL ALT END.
Windows Update erzwingen
Reg Delete "HKLMSoftwareMicrosoftWindowsCurrentVersionWindowsUpdateAuto Update" /v NextDetectionTime /f
net start wuauserv
Sync Windows System Time With Timeserver
Clear the DNS cache
Repeat a command in MS Office
Repeat a command in MS Office: CTRL y
Excel search a value in a range of cells
You have a range of data, (for example OtherSheet!$A$1:$A$65000) and you have a cell (for example B7) and you want to know if its content can be found in the range of data
=NOT(ISNA(VLOOKUP(B7; OtherSheet!$A$1:$A$65000; 1; FALSE)))
Mark area with the desired format, select Format Painter icon, hold CTRL key, mark area which should also get the format.