Desktop Gone Forever
If you can do without the regular NT 4.0 desktop permanently, it's possible to start with just the Task Manager even without Command Prompt. Launch the Registry Editor and locate HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/ CurrentVersion/WinLogon. Double-click on value named Shell (set by default to Explorer.exe). Enter Taskmgr.exe for the NT Task Manager. For a command prompt, enter Cmd.exe. Close the Registry Editor and log off.

Using the Windows Task Manager
Windows Task Manager can aid you in finding the amount of RAM you can regain by disabling unnecessary system services. Right-click on the taskbar and select Task Manager from the context menu. You can view the CPU usage and memory usage under the Performance tab, To regain resources, you can kill unnecessary processes from the Processes tab.

Fast Menus
You can change the Start menu delay in displaying sub-menus. Run Regedit adn navigate to HKEY_CURRENT_USER \Control Panel\Desktop. Change the value for MenuShowDelay to any number between 0 (fastest) and 4000 (slowest). If the above does not exist, add a string value with this name.

Launch Faster
You can change the default boot delay of 30 seconds. Open Control Panel > System > Startup/Shutdown. Under the Show List For, change the settings to the desired boot delay value. To bypass the boot menu altogether, set the delay to 0. Note: If you dual boot between the Operating Systems using the NT boot loader, do not set the boot delay value to 0.

Messing with Partitions
Before using Disk Administrator to make changes to the partitions, you may want to make sure you save your current configuration. To do this, click Start > Programs > Administrator tools > Disk Administrator > Partition > Configuration > Save. Insert a formatted floppy disk into your drive and click OK. You can restore the partition structure later by clicking on Partition > Configuration > Restore.

Performance Monitor
The Performance Monitor will not monitor disk performance unless you turn on the disk counters first. to do this, open the Command Prompt window and type diskperf -Y. r\Restart the computer. you can monitor disk activity with the Performance, you should turn them off by typing diskperd -N at the Command Prompt when you have finished testing.

Sharing Resources Secretly
To secretly share a resource, simple append a dollar sign ($) to share name. When you do so, the resource doesn't appear in Network Neighborhood, but is readily available by either mapping the drive or typing the UNC in the Run dialog box. This provides an additional degree of privacy and security to a shared resource. Further more, and access restrictions or passwords assigned to that shared resource remain in effect.

NT Protocol Analyser
NT server 4.0 includes a software-based protocol analyzer called the Network Monitor Agent. To install it open Control Panel > Network > Services and click on Add. Select Network Monitor Agent from the list. You can now start Network Monitor from the Administrative Tools. To capture network data, click on Capture > Start. Click Capture > Stop to stop monitoring.

Alerter and Messenger
If messages don't reach their destination's) when using "net send" command, turn on the Alerter and Messenger serviced in the Services applet of the Control Panel. also, make sure that the intended recipient is not logged in to multiple machines.

Adding a Command Prompt to any Folder
Open Explorer and click View > Options > File Types. Locate Folder and click Edit. Click New to open the New Action dialog box. Type Command Prompt in the Action box, and type cmd.exe in the Application Used to Perform Action box. Now you can right-click a folder and click Command Prompt to open a Command Prompt window at the folder's path.

AutoComplete
You can automatically fill in file and folder names at the command prompt, much like a UNIX terminal. Launch the Registry editor and move down to the HKEY_CURRENT_USER \Software\Microsoft\Command Processor. Select CompletionChar and set its value of to 9. Restart the system for the changes to take effect. Now, at the Command Prompt window, type in the first few characters of the file or folders and press Tab to complete it automatically.

Saving Recent Desktop Settings
To save the Desktop settings on normal exits only. You could lose your recent Desktop modifications if NT crashes or hangs. you can save your current Desktop settings by selecting and object on the Desktop and pressing F5 key