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Virtual Router Switch uses netsh commands to control wireless hosted network feature on compatible Windows 7 computers. Due to use of native commands, no third party software needed, just download and run.

The script can be downloaded here : vr.bat (right click and 'Save link as..')

To enable Internet Connection Sharing on the virtual router, follow steps below

1. Type "ncpa.cpl" in the search box in start menu and press enter.

2.  At the Network Connections window, right click on the network adapter that has internet and select 'Properties'
3. Click on 'Sharing' tab
4. Tick the 'Allow other network users ...' and under Home networking connection, select the virtual AP you created.

5. Click OK

To unshare the connection, untick the 'Allow other network users ...'

If you listen to music on good speakers or headphones, you will, at times notice and hear chirping or ringing sound during quiet passage with bass or low frequency, such as a beat. It is annoying, but the problem does not lie in your sound card or headphones or sound system, it is Windows's fault. This problem is apparent in Windows Vista and up, as it's due to the misconfiguration of default audio settings and in my opinion shitty DSP of audiodg.exe.

Anyway to get rid of the chirp, go to audio properties by right clicking the speaker icon on the task bar and select 'playback devices'.


Double click on speakers and on the 'Speakers Properperties' dialog select the advanced tab. Under default format change the format to '16 bit, 44100hz (CD quality)'. Then click apply.



You then ask why down grade to CD quality when DVD quality is better? No, higher sampling rate or numbers does not equal to better sound quality. It is a placebo increase in sound quality and introduces unwanted noise like the chirping. You have to understand that most audio you listen to are 44.1khz sampling rate and increasing the sound card's sampling rate isn't going to improve that.

The tracert program that came with Windows seems to be useless at times. Just look at the shot on the right.

Wrote a .bat script to overcome this problem, here.

Feature of my version of tracert

• Option for super fast tracing
• Works 95% of the time

Note: If you see duplicate address for a consecutive hop, it means it found a hidden router (which does not ping back)

There are times when reloading a display driver is necessary, like say you crashed it and the driver stays in 'Safe Mode' where the graphics card is throttled to lower clock frequency and a reboot is necessary to snap the graphics back to full performance.


This is quite troublesome when you are determining ceiling overclock frequency for your card as you have to reboot everytime the driver crash. A driver reload is faster than reboot as shown here.


Driver reloaded.

You turn on your laptop and what you get is that blank screen with colour slideshow and nothing else. You tried plugging it to an external monitor, but to no avail - 'no input signal'. You tell yourself :"weird? the harrdrive is reading and the logon chime.."

Jump straight to steps
Your laptop is indeed working, just that the monitor/interface has gone south. Naturally, you could try to tear your laptop apart and reseat the monitor connector or graphics card, check the board if you're using integrated graphics. If it worked after that, congrats, but if it doesn't, then.. This problem usually arises from broken graphics controller, and the color slideshow you see is probably the 'test mode' of the laptop monitor, because there is no output to the monitor.

Sigh. Usually this problem can be mitigated on a desktop by replacing a new graphics card, but for a laptop is quite expensive since the graphics controller is integrated to the motherboard, WHAT TO DO? Buying an external USB video controller can do the job, they are cheap, or if your laptop has an external PCI port it's even better, because you can install an external desktop graphics card. But if you are not really into doing those things, and is planning to recover data or wants to access the laptop urgently, it is possible.. The Windows Remote Desktop Connection is one of the ways, but setting it up and getting it to work is almost impossible blindfolded, so there must be something better..


UltraVNC makes a little software called 'Single Click' where you can preconfigure a Remote Desktop Server and run it on the broken laptop so you can access it on another computer.

Instructions

This step by step instruction helps you to control the broken laptop visually on another computer.
Firsly make sure both computers are connected to a LAN, WLAN or some local IP network and can see each other on the network.

1. Download UltraVNC on a working computer and install it. Run the vncviewer.exe with the -listen switch by creating a shortcut of the vncviewer.exe, right-click-properties it and adding "-listen 5500" to the end of the 'target' like this

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2. Download this, and open a file called 'helpdesk.txt' in the archive. Between [HOST] and [TEXTTOP] delete everything else and insert

LAN connection
-connect XXX.XXX.XXX.XXX:5500 -noregistry

where XXX.XXX.XXX.XXX is the IP of the working computer.

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3. Save the text file, then delete a file called 'rc4.key' in the archive, then visit this site http://support1.uvnc.com/cgi-bin/upload4.pl and upload the .zip archive. The userid is 'foo' and the password is 'foobar'. Download the resulting .exe file and copy it to a flash drive.

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4. Plug the flash drive to the broken laptop, and try to run the .exe contained in the flash drive.
      Some techniques - Usually on a Windows 7 (assuming the broken laptop is using one) with autoplay on by default (also assuming it's on), the first thing that should appear on the broken laptop is the autoplay dialog with 'Open Folder to View Files' focused first after you plug in the drive. So a minute after you plugged in the drive, just press enter. After that press tab 3 times and you should be at the search bar. Type in the exact name of the .exe file you copied to the flash drive, if say it's called abcde.exe, type abcde.exe then press enter. After that press down twice and press enter, the .exe program should be launched (you should hear the du du sound of UAC). After that press left once and press enter.

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5. On the broken computer, try to 'feel' your way to the 'connect' button of the program.
       Some techniques - move your mouse at different places while left clicking once at each position until you hear a chime on the broken computer. After each chime sounded, press enter and do this while working your way up vertically very slowly until the chime stopped, here you double left click.

The broken laptop should connect to the working computer and you should be able to control it now.

HP printers don't come with duplex printing, especially those economy ones. Canon printers have duplex printing, and it made it easier for it's users to save paper. But 'duplex printing' isn't really a hardware feature, but a software implementation.

To duplex print on a HP printer (or any printer), say you wanna print 20 pages, at the print dialog, click 'Properties', then on the Paper/Quality tab click on 'Advanced'. At the Advanced Options dialog select 'Print Even Pages Only' on the Pages to Print drop down menu.



Click OK, go back and start printing (yes print even pages only, don't panic there's more to come)

After finish printing, take the whole printed pages turn it around horizontally and put it back to tray face down.

Now click 'Properties', then on the Paper/Quality tab click on 'Advanced'. At the Advanced Options dialog select 'Print Odd Pages Only' on the Pages to Print drop down menu. Click OK and print.

There you go, duplex print the manual way.

If you are printing odd number of pages say 21 pages, you have to add one additional page in front of the printed even pages before 'printing odd number of pages'.

 
You might often want to send files to your friends, or anybody or host a file, and people usually resort to online storage service such as Windows Live SkyDrive, or Mediafire and the such. But those services do not give you full control on how the files are served and accessing those sites are usually slow and clunky or require registration.

This post will guide you step by step on how to set up a ftp server on your computer so you can access it anywhere.

Step 1.
Grab yourself Filezilla FTP server and install it. After installing it, you will be presented with a login prompt. This is the login prompt for the server control interface.

Just leave the password blank and press 'OK'. Then you will be presented with the server control interface.

Now you will have to setup the server for use. Of course you have to start adding user first. Click the icon with one user at the top bar.


At the user account control dialog, go to the 'Shared Folder' page.

Then click on 'Add' under 'Users'


Then an 'add user account' dialog appears. Here you can enter your desired username. You can just leave the group as none.



Tip: Use the username 'anonymous' if you want to make the server accessible without a password.

You can add more users later if you want by repeating the steps.

Press OK when you're finished.

Then now you have to assign the folder accessible by that user. You can do that by clicking 'add' under the 'shared folder'.


A 'Browser folder' dialog appears. Here you can specify the folder that is accessible by the user.

For example, you can choose to share 'My Music' folder. Press 'OK' when you are done.
You can choose to share multiple folders for that user by clicking 'add' and choosing another folder.

After adding the folder for that user, you can specify actions allowed to be done on the folder by the user. The tick boxes beside the 'shared folders' allow you to control what the user can do to the folder.

Description of the tickboxes.
Files
Read - allow user to see the folder
Write - allow user to put files into the folder
Delete - allow user to delete files in the folder

Directories
Create - allow user to create folders inside the folder
Delete - allow user to delete folder inside the folder
List - allow user to list folders contained inside the folder
+ Subdirs - apply the rules to the folders inside the folder.

Tip: You can set different rules and permissions for different folders by clicking on the folder and ticking the desired boxes. You can also set shared folders and their properties for different users by selecting the user from the 'Users'

After you're done, it's time to set a password for the user.

You can do that by first, clicking the 'General' page.

Under the 'account settings', tick the 'Password' box and make the password field active. After ticking, type in your desired password and remember. The other settings can be left as it is.

Tip: If you have more than one user, select the user from the 'Users' to view and change settings for the specific user.

When everything is done, just press OK.


You FTP server is now configured and ready to be used. To test out your server, simply go to 'My Computer' and type "ftp://localhost" at the address bar.


And then just press enter and a login prompt appears. Just supply it with the username and password you set earlier.

After logging on you should see the contents of the folder you shared for that user.

Part 2.
Your ftp server is now only accessible on the local network, that is only the computers connected to the local network can see and access the ftp server. In order to make the server accessible outside the local network, just follow the steps below.

Tip: If the computer is directly connected to the internet, you can skip these steps. How can I tell if my computer is directly connected to the internet?

We now will setup port forwarding for your router. Firstly, go to the router configuration page of your router, which are usually http://192.168.1.1, http://192.168.0.1, http://192.168.1.2 or http://10.0.0.1. Just click on one of the addresses and if one of it responds then use that is the router configuration address.

At the router configuration login, just supply it with the username and password. If you don't know them, just use the default credentials by referring it here.
[If you happen to be a Malaysian streamyx user, and happen to be using a TM supplied router, the username is either "tmadmin", or "tmuser", with password "tmadmin" or "tmuser"]



 You should look for something called 'NAT' or 'Port Forwarding' or 'Virual Servers' For my router, it is 'Virutal Servers' located under the 'Advanced Setup'.


At the virtual servers config page, click on 'Add'

Then you should see something like this.


Click on the 'Custom Service' radio button and give the forwarded port a name. The 'Server IP Address' is the address of your computer locally, just put in '192.168.1.254' as this address will be configured as a static address for your computer.

At the Dynamic DNS config page, select your DDNS provider as 'dyndns,org', or 'dlinkddns.com'. They are the same for the two. Enter the URL you created earlier to the hostname field (without www and http:// prefix), and supply it with the credentials you used for the account you created at dlinkddns.com.

To access your ftp server from the outside, just type in 'ftp://[YOUR URL HERE].dlinkddns.com' into a browser's address bar or the address bar of 'My Computer'.