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Use Automatic Completion of Directory or Path for Command Prompt in Windows Vista

An old registry tip from Microsoft Technet articles that is very useful in everyday Geek computing.

If you open CMD and go to a directory, e.g. cd\windows, instead of typing the complete word "windows" type "win" + TAB. It will automatically search for the word and display the first value.

Registry Settings

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Command Processor

HKEY_CURRENT_USER\Software\Microsoft\Command Processor

Lets make some research:

By default HKEY_LOCAL_MACHINE hive > CompletionChar value is 64 in decimal and 40 in hexadecimal

While in HKEY_CURRENT_USER hive settings: CompletionChar value in Hexadecimal and Decimal is 9

So, Which is being followed by the current Logon User?

CompletionChar = 9 by HKEY_CURRENT_USER

In which according to Microsoft Technet Articles, The Source of Registry Tips, hacks and Tricks in the Entire World!

The value 9 is the TAB key.

Therefore, By default you can use Tab Key for command line automatic completion of Path.


For example as shown in the picture above, going to c:\windows directory and typing "cd sys". By pressing Tab twice or more you can see the possible directories beginning with "sys". These are:

  • System
  • System32

You can also verify that by using the command: dir sys* /ad

Let's try another.

Open Command prompt as administrator (Start Search > "cmd" > CTRL+Enter)

cd \Win + (Tab Key) + \Pe + (Tab Key) + \w + (Tab Key) + \d + (Tab Key)

equals C:\Windows\Performance\WinSAT\DataStore>

To have an idea Please Read more here.

Note: You cannot use wordpad command because the default search Path for executables are


Click here for more details



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Internet Connection Sharing to Several Computers using Windows

This is your Ultimate Guide, easiest and complete How-To Article in Sharing Internet Connection using Windows 2000, XP and Vista.



More than Five years ago, during the summer of 2003 I applied for On-the-Job Training for 1.5 months in a Communications Company. Luckily, they let me study and experienced what's life as a Data Communication Engineer.

That time, I really wanted to explore Communications Engineering and learn more about Microwave, Satellite, ISDN and Fiber Optics. Although I already know How to create a Network in Windows and some background on Microwave designs but there are many questions in my mind.

How DSL Works in the real world? What are the devices needed? How can you connect to other computers in Public IP settings like in P2P? What is DSLAM? I have so many questions...

Most of the small Internet Cafe that time doesn't use a router to connect to the Internet because it is still expensive (but getting cheaper day by day) thus, DUAL LAN-CARD/ETHERNET CARD NETWORKING is Popular.

Here's the Network Diagram: Figure A

Two Computers


Connect the two computers using UTP/LAN/CAT5 Network Cable

Three or More Computers


Sharing Internet using a Router: Figure B


Wireless Broadband Routers: Figure C


Networking Without a Router: Figure A

Cable Modem: The incoming line coming from the Cable Box uses Coaxial Cable and the line going to the computer uses USB or Lan Cable.

DSL Modem: The incoming line uses the Plain-Old-Telephone-System (POTS) and the line connected to the next computer or hub uses UTP/Lan Cable.

To setup DSL or Digital Subscriber Line PPPOE Connection, You need to input the Username and password to use the Internet. Please Read here for more information.

Internet Protocol (IPv4) Address Settings Example:

Gateway Computer

Lan Card 2: The LAN CARD Connecting to your Switch or HUB

IP Address:

Subnet Mask:

Other Computers  (you can set this automatic or enter the settings below)

IP Address: -

Subnet Mask:

Default Gateway:

DNS Server:

Note: The same Procedure in Windows 2000, XP and Vista

To Add the Settings Above:

Press Win+R > type ncpa.cpl > Right-click the Local Area Connection 2 or Different Name that corresponds to the second Ethernet Card > Properties > Click the "Internet Protocol version 4 (IPv4)" > Properties

To check: Open Command Prompt and type: ipconfig

Enabling / Activating / Setup Internet Connection Sharing (ICS)

1. From my Quick Tip: Open Network Connection Window by simply launching the command: Press "Win+R" > ncpa.cpl or Control ncpa.cpl

2. Select the local area network (LAN) Card for DSL or Cable Internet, WAN Miniport (PPPOE) for iBurst, USB Modem for 3G, GPRS, HSDPA or any type Dial-up Networking that provides you a primary Internet Connection > Right-Click Properties

3. In the Sharing Tab (Advanced Tab in Windows XP), Click to check the option "Allow other network users to connect though this computer's Internet connection" and Finally, Choose Local Area Connection 2 or any name that corresponds to the Second LAN Card connected to another Computer or Hub.


NOTE: If you are using 3G or HSDPA as your primary connection to the Internet. You will encounter this Message "Since this connection is currently active, some settings will not take effect until the next time you dial it.": Just Neglect it



Networking With a Router: Figure B

Usually, the guide is indicated in the manual of the router. There are many different kinds or ways to set the settings but uses the same principle as Figure A.

Different Ways

1. Setting the IP Address through a built-in web-server LAN program in the router. Open IE and type

2. Setting the IP Address through Telnet or Hyper Terminal

The Simplest Explanation to Remember: Router is being used as a gateway and to connect to the Internet instead of using a separate computer. Thus, If your inputting Username and Password in PPPoE Connection you must set it inside the router.

Wireless Access Point: Figure C

The Network uses the same procedure in Figure B except you will only use one or two devices with more features like additional Wireless LAN Capability (802.11 a/b/g/n).

AD-HOC Networking

The procedure is the same with FIGURE A.

Please read more here


Enjoy Learning!!!



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