How to determine a 16 bit application from a 32 bit application ?

Old 16 bit app are still useful and are in use by many. I think this is the result computer evolution. If You want to know whether a particular executable is a 16 bit or 32 bit application, here is a secret. Right-click the program’s executable file and Then choose Properties. If You see a Version tab, it’s a 32-bit program else its a 16-bit program. Alternately You can go into task manager and look for applications that have ntvdm.exe (virtual dos machine) in the name column of process tab. If there is one, it means its a 16 bit app.

Does your computer forgets to power off after shutdown ?
If this is is the case, try this. It may help. Open registry by going to START-RUN and entering REGEDIT and Navigating to [HKEY_CURRENT_USERControl PanelDesktop] and look for value of PowerOffActive key. If it is set to 0, set it to 1 . This may not work in all cases (specially if your hardware does not support APMS protocol) but is worth a try in other cases.

How to avoid password entry at start up ?
Open Administrative tools in control panel and go to Local security policy.Select accounts and within that password policies. Set minimum password length to 0. This should be enough to stop password from being entered at startup.
I have received some criticism for asking users to set their password length to 0 and I agree to some of the potential security risks. Here is one better way to do it.

Go to START-RUN and enter “control userpasswords2″ select the user the you would like to have auto logon set to and then uncheck “Users must enter a user name and password to use this computer”. Ok out. Now you have to do one more thing. Go to START-RUN and enter “control userpasswords” and clicking on “Change the way users log on or off”, and unchecking both “Use the Welcome Screen” and “Use Fast User Switching”.

There is another way to gt to the same screen. Try this to auto logon 1. At a command prompt, type: rundll32 netplwiz.dll,UsersRunDll 2. In the User Accounts dialog that appears, clear the “Users must enter a user name and password to use this computer” check box and click OK. 3. Enter the user name and password of the account you want to automatically log on.

Now Reboot and see it happen.

Move the My Documents Folder

Keeping the My Documents folder on a partition separate from the operating-system files can save you pain if you have to reformat the boot partition. You may also want to store it on a network share that gets backed up regularly. Right-click on My Documents on the desktop or in the Start menu and choose Properties. Click on Find Target to select the new location, and click on OK. In the Move Documents box, click on Yes to move the documents.

Recover a Corrupted System File

If an essential Windows file gets whacked by a virus or otherwise corrupted, restore it from the Windows CD. Search the CD for the filename, replacing the last character with an underscore; for example, Notepad.ex_. If it’s found, open a command prompt and enter the command EXPAND, followed by the full pathname of the file and of the desired destination: EXPAND D:SETUPNOTEPAD.EX_ C:WindowsNOTEPAD.EXE. If either pathname contains any spaces, surround it with double quotes.

If the file isn’t found, search on the unmodified filename. It will probably be inside a CAB file, which Win XP treats as a folder. Simply right-drag and copy the file to the desired location. In other Windows platforms, search for a file matching *.cab that contains the filename. When the search is done, open a command prompt and enter EXTRACT /L followed by the desired location, the full pathname of the CAB file, and the desired filename; for example: EXTRACT /L C:Windows D:I386Driver.cab Notepad.exe. Again, if the destination or CAB file pathname contains spaces, surround it with double quotes.

Keep Files Private

f you want to encrypt the contents of an individual file or directory, Windows XP Pro will do the trick, provided you enable NTFS on your hard drive. To encrypt a file, right-click on it to bring up the Properties window. Click on the Advanced button, then in the Advanced Attributes dialog box click on Encrypt contents to secure data. This will encrypt the file (using either DES, which employs a 56-bit key on each 64-bit block of data, or 3DES, which uses a 56-bit key three times on each 64-bit block of data), and it will provide a certificate just for you. This certificate is key; if you reinstall Windows or otherwise lose your user account, your access to the encrypted files will be gone, too. You need to export your certificates to back them up: For detailed instructions, search on export certificate in Windows Help.

Windows XP does not require you to enter your password when you open the encrypted file. Once you log on to a session, encrypted files are available for you—and anyone who walks up to your system—to view.

Windows XP Home doesn’t support this method. Both XP Home and XP Pro, however, let you create password-protected compressed files. To do this, right-click on the desired file and choose Send To | Compressed (zipped) Folder. Open the resulting folder and select Add a Password from the File menu; delete the original file. Note that this encryption is relatively weak. It should dissuade casual users but won’t put up much of a fight against someone determined to hack it apart.

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Keyboard Shortcuts

When speed counts, the keyboard is still king. Almost all the actions and commands you can perform with a mouse you can perform faster using combination of keys on your keyboard. These simple keyboard shortcuts can get you where you want to go faster than several clicks of a mouse. You’ll work faster on spreadsheets and similar documents, too, because you won’t lose your place switching back and forth between mouse and keys.

Here are some of the most useful keyboard shortcuts:

Copy. CTRL+C
Cut. CTRL+X
Paste. CTRL+V
Undo. CTRL+Z
Delete. DELETE

Delete selected item permanently without placing the item in the Recycle Bin.      SHIFT+DELETE

Copy selected item. CTRL while dragging an item
Create shortcut to selected item. CTRL+SHIFT while dragging an item

Rename selected item. F2
Move the insertion point to the beginning of the next word. CTRL+RIGHT ARROW

Move the insertion point to the beginning of the previous word. CTRL+LEFT ARROW

Move the insertion point to the beginning of the next paragraph. CTRL+DOWN ARROW
Move the insertion point to the beginning of the previous paragraph. CTRL+UP ARROW

Highlight a block of text. CTRL+SHIFT with any of the arrow keys
Select more than one item in a window or on the desktop, or select text within a document. SHIFT with any of the arrow keys
Select all. CTRL+A
Search for a file or folder. F3
View properties for the selected item. ALT+ENTER
Close the active item, or quit the active program. ALT+F4
Opens the shortcut menu for the active window. ALT+SPACEBAR
Close the active document in programs that allow you to have multiple documents open simultaneously. CTRL+F4
Switch between open items. ALT+TAB
Cycle through items in the order they were opened. ALT+ESC
Cycle through screen elements in a window or on the desktop. F6
Display the Address bar list in My Computer or Windows Explorer. F4
Display the shortcut menu for the selected item. SHIFT+F10
Display the System menu for the active window. ALT+SPACEBAR
Display the Start menu. CTRL+ESC
Display the corresponding menu. ALT+Underlined letter in a menu name
Carry out the corresponding command. Underlined letter in a command name on an open menu
Activate the menu bar in the active program. F10
Open the next menu to the right, or open a submenu. RIGHT ARROW
Open the next menu to the left, or close a submenu. LEFT ARROW
Refresh the active window. F5
View the folder one level up in My Computer or Windows Explorer. BACKSPACE
Cancel the current task. ESC
SHIFT when you insert a CD into the CD-ROM drive Prevent the CD from automatically playing.

Use these keyboard shortcuts for dialog boxes:

Move forward through tabs. CTRL+TAB
Move backward through tabs. CTRL+SHIFT+TAB
Move forward through options. TAB
Move backward through options. SHIFT+TAB
Carry out the corresponding command or select the corresponding option. ALT+Underlined letter
Carry out the command for the active option or button. ENTER
Select or clear the check box if the active option is a check box. SPACEBAR
Select a button if the active option is a group of option buttons. Arrow keys
Display Help. F1
Display the items in the active list. F4
Open a folder one level up if a folder is selected in the Save As or Open dialog box. BACKSPACE

If you have a Microsoft Natural Keyboard, or any other compatible keyboard that includes the Windows logo key and the Application key , you can use these keyboard shortcuts:

Display or hide the Start menu.
Display the System Properties dialog box. +BREAK
Show the desktop. +D
Minimize all windows. +M
Restores minimized windows. +Shift+M
Open My Computer. +E
Search for a file or folder. +F
Search for computers. CTRL+ +F
Display Windows Help. +F1
Lock your computer if you are connected to a network domain, or switch users if you are not connected to a network domain. + L
Open the Run dialog box. +R
Display the shortcut menu for the selected item.
Open Utility Manager. +U

Helpful accessibility keyboard shortcuts:

Switch FilterKeys on and off. Right SHIFT for eight seconds
Switch High Contrast on and off. Left ALT +left SHIFT +PRINT SCREEN
Switch MouseKeys on and off. Left ALT +left SHIFT +NUM LOCK
Switch StickyKeys on and off. SHIFT five times
Switch ToggleKeys on and off. NUM LOCK for five seconds
Open Utility Manager. +U

Keyboard shortcuts you can use with Windows Explorer:

Display the bottom of the active window. END
Display the top of the active window. HOME
Display all subfolders under the selected folder. NUM LOCK+ASTERISK on numeric keypad (*)
Display the contents of the selected folder. NUM LOCK+PLUS SIGN on numeric keypad (+)
Collapse the selected folder. NUM LOCK+MINUS SIGN on numeric keypad (-)
Collapse current selection if it’s expanded, or select parent folder. LEFT ARROW
Display current selection if it’s collapsed, or select first subfolder. RIGHT ARROW

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1. It boasts how long it can stay up. Whereas previous versions of Windows were coy about how long they went between boots, XP is positively proud of its stamina. Go to the Command Prompt in the Accessories menu from the All Programs start button option, and then type ‘systeminfo’. The computer will produce a lot of useful info, including the uptime. If you want to keep these, type ‘systeminfo > info.txt’. This creates a file called info.txt you can look at later with Notepad. (Professional Edition only).

2. You can delete files immediately, without having them move to the Recycle Bin first. Go to the Start menu, select Run… and type ‘gpedit.msc’; then select User Configuration, Administrative Templates, Windows Components, Windows Explorer and find the Do not move deleted files to the Recycle Bin setting. Set it. Poking around in gpedit will reveal a great many interface and system options, but take care — some may stop your computer behaving as you wish. (Professional Edition only).

3. You can lock your XP workstation with two clicks of the mouse. Create a new shortcut on your desktop using a right mouse click, and enter ‘rundll32.exe user32.dll,LockWorkStation’ in the location field. Give the shortcut a name you like. That’s it — just double click on it and your computer will be locked. And if that’s not easy enough, Windows key + L will do the same.

4. XP hides some system software you might want to remove, such as Windows Messenger, but you can tickle it and make it disgorge everything. Using Notepad or Edit, edit the text file /windows/inf/sysoc.inf, search for the word ‘hide’ and remove it. You can then go to the Add or Remove Programs in the Control Panel, select Add/Remove Windows Components and there will be your prey, exposed and vulnerable.

5. For those skilled in the art of DOS batch files, XP has a number of interesting new commands. These include ‘eventcreate’ and ‘eventtriggers’ for creating and watching system events, ‘typeperf’ for monitoring performance of various subsystems, and ‘schtasks’ for handling scheduled tasks. As usual, typing the command name followed by /? will give a list of options — they’re all far too baroque to go into here.

6. XP has IP version 6 support — the next generation of IP. Unfortunately this is more than your ISP has, so you can only experiment with this on your LAN. Type ‘ipv6 install’ into Run… (it’s OK, it won’t ruin your existing network setup) and then ‘ipv6 /?’ at the command line to find out more. If you don’t know what IPv6 is, don’t worry and don’t bother.

7. You can at last get rid of tasks on the computer from the command line by using ‘taskkill /pid’ and the task number, or just ‘tskill’ and the process number. Find that out by typing ‘tasklist’, which will also tell you a lot about what’s going on in your system.

8. XP will treat Zip files like folders, which is nice if you’ve got a fast machine. On slower machines, you can make XP leave zip files well alone by typing ‘regsvr32 /u zipfldr.dll’ at the command line. If you change your mind later, you can put things back as they were by typing ‘regsvr32 zipfldr.dll’.

9. XP has ClearType — Microsoft’s anti-aliasing font display technology — but doesn’t have it enabled by default. It’s well worth trying, especially if you were there for DOS and all those years of staring at a screen have given you the eyes of an astigmatic bat. To enable ClearType, right click on the desktop, select Properties, Appearance, Effects, select ClearType from the second drop-down menu and enable the selection. Expect best results on laptop displays. If you want to use ClearType on the Welcome login screen as well, set the registry entry HKEY_USERS/.DEFAULT/Control Panel/Desktop/FontSmoothingType to 2.

10. You can use Remote Assistance to help a friend who’s using network address translation (NAT) on a home network, but not automatically. Get your pal to email you a Remote Assistance invitation and edit the file. Under the RCTICKET attribute will be a NAT IP address, like 192.168.1.10. Replace this with your chum’s real IP address — they can find this out by going to www.whatismyip.com — and get them to make sure that they’ve got port 3389 open on their firewall and forwarded to the errant computer.

11. You can run a program as a different user without logging out and back in again. Right click the icon, select Run As… and enter the user name and password you want to use. This only applies for that run. The trick is particularly useful if you need to have administrative permissions to install a program, which many require. Note that you can have some fun by running programs multiple times on the same system as different users, but this can have unforeseen effects.

12. Windows XP can be very insistent about you checking for auto updates, registering a Passport, using Windows Messenger and so on. After a while, the nagging goes away, but if you feel you might slip the bonds of sanity before that point, run Regedit, go to HKEY_CURRENT_USER/Software/Microsoft/Windows/Current Version/Explorer/Advanced and create a DWORD value called EnableBalloonTips with a value of 0.

13. You can start up without needing to enter a user name or password. Select Run… from the start menu and type ‘control userpasswords2′, which will open the user accounts application. On the Users tab, clear the box for Users Must Enter A User Name And Password To Use This Computer, and click on OK. An Automatically Log On dialog box will appear; enter the user name and password for the account you want to use.

14. Internet Explorer 6 will automatically delete temporary files, but only if you tell it to. Start the browser, select Tools / Internet Options… and Advanced, go down to the Security area and check the box to Empty Temporary Internet Files folder when browser is closed.

15. XP comes with a free Network Activity Light, just in case you can’t see the LEDs twinkle on your network card. Right click on My Network Places on the desktop, then select Properties. Right click on the description for your LAN or dial-up connection, select Properties, then check the Show icon in notification area when connected box. You’ll now see a tiny network icon on the right of your task bar that glimmers nicely during network traffic.

16. The Start Menu can be leisurely when it decides to appear, but you can speed things along by changing the registry entry HKEY_CURRENT_USER/Control Panel/Desktop/MenuShowDelay from the default 400 to something a little snappier. Like 0.

17. You can rename loads of files at once in Windows Explorer. Highlight a set of files in a window, then right click on one and rename it. All the other files will be renamed to that name, with individual numbers in brackets to distinguish them. Also, in a folder you can arrange icons in alphabetised groups by View, Arrange Icon By… Show In Groups.

18. Windows Media Player will display the cover art for albums as it plays the tracks — if it found the picture on the Internet when you copied the tracks from the CD. If it didn’t, or if you have lots of pre-WMP music files, you can put your own copy of the cover art in the same directory as the tracks. Just call it folder.jpg and Windows Media Player will pick it up and display it.

19. Windows key + Break brings up the System Properties dialogue box; Windows key + D brings up the desktop; Windows key + Tab moves through the taskbar buttons.

20. The next release of Windows XP, codenamed Longhorn, is due out late next year or early 2003 and won’t be much to write home about. The next big release is codenamed Blackcomb and will be out in 2003/2004.
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