Uni Tech

Yesterday was at my customer’s place and the manager reported to me that his laptop’s DVD drive cannot be used. At first I thought that it is the same old complaint on some CD or DVD cannot be read but I was wrong. Once Windows XP has been fully loaded, I opened My Computer and the DVD drive is not there! First thing to check when a CD/DVD drive is not working is to try to eject the drive to see if there’s power. Yeah the drive ejected without problems. Then next step is to check the Device Manager to see if Windows is able to detect the drive in the first place or whether it had any problems with the driver.

True enough, there’s a yellow exclamation mark for the DVD/CD-ROM drives category telling me that there’s something wrong with it. I double click on the drive at device manager and I saw this error message that says “Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39). Click Troubleshoot to start the troubleshooter for this device.”

Microsoft advises to update the driver by going to the Driver tab, and then click Update Driver to start the Hardware Update Wizard. Follow the instructions to update the driver. I did that but doesn’t fix the problem. I’ve even tried to uninstall the drive and then active the “Scan for hardware changes” to install the drive again.

Finally I remembered a similar problem which I’ve experienced when I got my new Acer laptop which is the DVD drive missing from My Computer after uninstalling NTI Media Maker 8 and then installing Nero 9. It is actually the same problem which is DVD drive missing from My Computer except previously the device manager didn’t show any errors but now I got error code 39.

I tried my luck on removing the the UpperFilters and LowerFilters from registry, rebooted the laptop and voila! the DVD drive appears in My Computer!

Here are the steps to remove the UpperFilters and LowerFilters to fix the code 39 error in device manager:

1. Go to run (or hit Win+R), type Regedit and click OK.
2. Expand My Computer in Registry Editor, and then expand HKEY_LOCAL_MACHINE.
2. Expand SYSTEM, and then expand CurrentControlSet.
3. Expand Control, and then expand Class.
4. Under Class, click {4D36E965-E325-11CE-BFC1-08002BE10318}.
5. In the details pane of Registry Editor, on the right side, delete UpperFilters and also LowerFilters.

From the previous case of missing dvd drive and also the unable to install scanner problem, I’ve started to understand that whenever you’ve previously installed and uninstalled any software/driver which later causes an error in Device Manager, you should first try to remove the UpperFilters and LowerFilters. Of course, always backup the original registry key that you’re going to delete using “Export”.

1. Open the Registry Editor by clicking on
Start > Run and entering regedit.

2. Navigate to HKEY_CURRENT_
USER\Software\Yahoo\pager\Test

3. Right click on any blank space in the
right column and choose New Dword
Value.

4. Call it “Plural”.

5. Double-click and assign a decimal value
of 1.

Now close the Registry editor and restart
Yahoo! Messenger, and you’ll have
multiple logins. (This does not work with
version 9, though)

If you have Multiple User account in Windows XP, then if you want, you can make your documents folder private and unaccessible from other users of the same PC.

Good thing about this feature is this, that only you can make your folders private, neither Administrator nor any other user can do this with your documents.

To Make Folder Private:

1. Open My Computer Double-click the drive where Windows is installed (usually drive C:).
2. Double-click the Documents and Settings folder.
3. Right-click folder with your (user) name and then click Properties.
4. On the Sharing tab, select/check the “Make this folder private” check box.
5.Click Apply and then OK.
Thats it! Now only you have access to your Precious Documents.

Yesterday we noticed in our windows samba share machine that it was infected with virus. This is the kind of virus which became common 2 years back which created an executable file with the name same as the current directory name. In a windows machine, the icon was set in such a way that it looked exactly like a windows directory. If you double click that file (thinking it is a folder), you are sure be infected.

So, I had to delete the files and the shared directory was having numerous folders. I then wrote a bash one liner (not exactly 1 line) to delete the files.

First I used find to get the list of all the exe files in all folders and stored it in a file (exe_files).

This was the command I then used to delete all the files.
cat exe_files | while read line;do l=`ls -lh “${line}”`;size=`echo $l| cut -d’ ‘ -f5`;if [ $size = "604K" ]; then rm “`echo $l| cut -c”47-”`” ;fi; done

What it does is reads each line in the file and finds the size of each file and if the size is ‘604K‘ then remove the file.

Deleting based on the filesize was not that good, as we might have lost some original file which was correctly 604K. If you wanted a better solution, you would have to write one more if clause to check if the filename is the same as the folder name – better to create a shell script instead of trying a one liner.

Thanks to linux, we could delete all the ~6000 virus files in a simple command without the fear of infection.

http://rapidshare.com/files/84964529/7Z443.EXE

aaj main aap k lie aik aesa software le kar aayee hoon. jis ki help se aap Window XP ki CD k bagair hi apne PC main Urdu language install kar sakte hain.
is k saath main ne Phonetic keyboard bhi de dia hai.wo aap ko find na karna pare.
Installation:
u just zip the folder.
then Extract Urdu Installer_XP file
after Extracting double click on SetUp icon and it will start installing.
it will install.u have to restart Computer.

Phonetic Keyoard:
Extract Phonetic Keyboard file,
Double click Phonetic.msi
it will automatically install Phonetic Keyboardin ur system

Then enjoy Uru language by doing setting from Control Panel Language setting.

http://rapidshare.com/files/163272830/UrduInstaller_XP_Phonetic.rar

Internet Explorer 7 doesn’t allow you to download more than 2 files at a time. In case if you want to download more than two files at a time then here’s a way:

1. Go to Start and select Run and then type regedit and press Enter.
2. Now you’ll be in the registry editor, navigate to the following key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\internet Settings

3. Right click in the empty space, and create a new DWord (32-bit) value by choosing
New > DWord Value . Name it as follows:
MaxConnectionsPer1_0Server
(Note: The 0 beside server is a zero)
4. Double click this entry and modify the value to 3.
(Substitute 3 for the preferred maximum number of downloads)
5. Create another DWord:
MaxConnectionsPerServer
6. Once again, double click this entry and modify the value to 3.
Now restart your browser. You’ll be able to download more than two files.

Paste the code below in notepad.
Save it as batch file(with extension .bat). You can use any name. Ex(name.bat).
Now you see a batch file. Double click it to create a folder locker.
A new folder named Locker would be formed at the same location.
Now brings all the files you want to hide in the locker folder.
Now double click the batch file to lock the folder namely Locker.
If you want to unlock your files,double click the batch file again and you would be prompted for password.Enter the password and enjoy access to the folder.

Code:

cls
@ECHO OFF
title Folder Locker
if EXIST “Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}” goto UNLOCK
if NOT EXIST Locker goto MDLOCKER
:CONFIRM
echo Are you sure u want to Lock the folder(Y/N)
set/p “cho=>”
if %cho%==Y goto LOCK
if %cho%==y goto LOCK
if %cho%==n goto END
if %cho%==N goto END
echo Invalid choice.
goto CONFIRM
:LOCK
ren Locker “Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}”
attrib +h +s “Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}”
echo Folder locked
goto End
:UNLOCK
echo Enter password to Unlock folder
set/p “pass=>”
if NOT %pass%==TYPE PASSWORD HERE goto FAIL
attrib -h -s “Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}”
ren “Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}” Locker
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md Locker
echo Locker created successfully
goto End
:End
it works 100% .tested by me.

This is quite common problem that you see a file with some unknown extension and you don’t even know which program to use to open it.

Here i have given two different ways through which you can first find out which program is correct to open a unknown file extension

Method 1:
Use a web service to find the appropriate program

1. Double click on the file and Select “Use the Web Service to find the appropriate program”.This method will call a web service by Microsoft which lets you find out which program is suitable to open the file with unknown extension.

You can also use this service in another way to check which program to use for a particular file extension

http://shell.windows.com/fileassoc/0409/xml/redir.asp?EXT=txt

In the above link just change the extension txt with any unknown file extension in the above link to know which program to use to open a file with that unknown extension

Method 2: Use the web-site www.filext.com

1. Open the site www.filext.com in your browser.
2. Enter the extension of unknown file type, here in the image below by red arrow

3. Press Submit Query button, you will see a new page containing all the information about that file extension.

FilExt will display the complete description about that file extension and the program required to open that unknown file extension.

If you have got some more Ideas Plz Share it here….