Network security first step

Naming a file is far less difficult than naming a file, but do you know? Sometimes changing the name of a file can solve some of our features, such as preventing malicious attacks, unlocking registry restrictions, repairing damaged files, and keeping our privacy confidential.
Tip 1: prevent malicious attacks

When we are surfing the Internet, some malicious websites can exploit system loopholes and use system programs such as deltree.exe and Format.com to delete or format data on your computer. If we change the name of these dangerous programs on the computer in advance, we will avoid this dangerous situation in some programs. In the computer, this type of dangerous program has deltree.exe (delete subdirectories and file programs), Format.com (format disk Program), and so on. You can use the "Search" function to find it one by one and change it to another name. In this way, even if you do not care about these malicious website moves, these dangerous programs will not be run.

Tips

Cleverly Prevents viruses

Nowadays, common viruses are infected with EXE files. We only need to change the extension of the EXE file from EXE to COM, which does not affect the use of the file and can also prevent viruses! Why not?

Clever Use 2: clever solution to program restrictions

There are some illegal websites. By modifying the user registry, the user cannot run any applications on the computer. When the user runs the program, this operation is canceled due to restrictions on this computer. Please contact your system administrator ." In the message box, the program cannot be run at all. In this case, the following key values are added to the non-French website in the user Registry: [HKEY_CURRENT_USERSSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer]
"RestrictRun" = dword: 0000001
If you want to remove this restriction, in theory, you only need to use the Registry Editor to delete this key value. However, the Registry Editor itself is also an executable program, so it can only be opened in another path.

And rename it Regedit. scr to receive a warning. Right-click the blank area on the desktop and select "properties" to open the "Display Properties" dialog box. Click the screen saver tab, click the screen saver drop-down arrow, find the screen saver of Regedit, select it, and Click Preview (1 ). The Registry Editor miraculously appears in front of you and deletes the RestrictRun key under [HKEY_CURRENT_USERSSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer] in the registry.

 

Restart the computer to unlock the Registry Editor. Change the register name of the register to regedit.exe. Restart the computer to solve the problem.

Tips

★When you click the "preview" button, some questions may occur. You can always press the "yes" button without affecting the operation.

★Change regedit.exe to regedit. scr. In the "my computer" window, click the "Tools> Folder Options" command, and then click the "View" tab card, in "advanced" Settings, select "Show System Folder content" and "show all files and folders" to clear "Hide protected operating system files" (recommended) "and" Hide extensions of known file types "Options (2 ).

 

Tip 3: Keep your files confidential

If you do not want others to open some important files on your computer at will, and you have no suitable encryption tool at hand, you may try renaming a file as a simple and effective way to keep it confidential.

After renaming the file, the system will pop up the dialog box shown in 3, and click "yes" to confirm. When you double-click the 1.exeworkflow file, the execution file is not correct due to "cmd1.exe". The system will pop up the dialog box 4 shown. You can only select the "close" button to terminate the application program.

 

If you want to use your favorites. txt folder later, you only need to rename the file name from your 1.exe”to your favorites. txt.

Tips

You also need to remember the real extension and password of the password. You need to change the extension before using it.

 

Tip 4: Use bitmap as a small icon

It turns out that the extension of small BMP bitmap files is changed from BMP to ICO and can be used as icon files.

Tip 5: Quick "Conversion" Word template

Sometimes someone else's beautiful Word file is seen, and they really want to save it as a template. But do you know? We do not have to open these Word files one by one in Word, and then save them as template files by "Save. Copy these Word files to the template folder of Word. If you are using Windows 9x/Me, copy them to the C: WindowsApplication DataMicrosoftTemplates folder (If your Windows is not in C: Windows, modify the path on your own ). If you are using Windows 2000/NT/XP, copy them to the C: Documents and SettingsAdministratorApplication DataMicrosoftTemplates folder.

Next, change these files with the extension of DOC to DOT files, and then select "file"> "new" in Word, the "New File" window task box appears on the right side of the Word window, and then click "template on the local machine" to use the template (5 ).

 

Tips

If you are using Office 2000/XP, click the "general template" project under "create by template", and then the "template" selection window appears.

Tip 6: "fixed" files cannot be decompressed automatically

Sometimes, when we double-click an EXE file in Windows "Resource Manager", "WinZip EXE-SelfExtractor file is too upt, possible it is damaged or disk transfer error "Warning box (6). At this time, the file cannot be executed. In fact, this type of EXE file is not an ordinary Windows EXE file, but a self-decompressed file generated by WinRAR or WinZip. A problem occurs on the file header, so it cannot be decompressed, in this case, you only need to change the extension of this file from EXE to ZIP or RAR. After double-clicking, the file can be correctly identified by WinRAR, and the file can also be decompressed and used properly.

 

Tip 7: Quickly use DAT files on VCD

In the multimedia editing software of Authorware and ctor, if we want to obtain the animation files on the VCD. Generally, the Interception Function of the playback software is used to intercept it into MPG files and then import them. However, if we only need to copy the files with the DAT extension under the Mpegav folder in the VCD to the hard disk, you can add a file with the extension MPG to favorites or be recognized and used by most multimedia production software. If you find multiple DAT files on the VCD disk, most of them are fragments (such as the music video of a song and the teaching of a class ), it is very valuable to save or take advantage of it in a selective manner. If the DAT file is large, we recommend that you intercept it with software.

Tips

Renaming CEL (Film file) to FLC (a non-true color animation file on DOS platform) can be recognized and used by Authorware, ctor, and 3DS Max.

Tip 8: protect your own files

There are a lot of people who use Authorware to create multimedia. Maybe they use the external U32 function. In addition, once you use it, it must be handed over together with the program, otherwise some commands in the program will not be executed. If you don't want to hand over all U32 to the other party, you can first set *. all U32 names are changed *. DLL, then you can introduce the functions in these DLL files in Authorware (without affecting the use), and finally create an installation program, then, use the installer to install the dynamic link library file used as the shared Dynamic Link Library to the System folder of the other machine, in this way, the user will not be able to find your DLL file from his System, and will not affect your program at all.

Wonderful use 9: listen to comments with a player

There are many comments on the Internet with the extension SWA. After downloading them back, change their extension names to MP3, and you can use Winamp or Foobar2000 for playback. The reason is that MP3 and SWA files are in the same format. They all belong to the MPEG Audio Level3 format, but MP3 belongs to the MPEG Audio Level3 I format, while SWA belongs to the MPEG Audio Level3 II format, generally, the player can play normally. In this way, you may not have to listen online, saving the network fee.

 

Tip 10: Let OE import multiple MSG files at a time

In OE, ONLY emails with the EML extension can be imported. If you have many MSG files on your machine and want to import them to OE, you do not need to find a special tool. We just need to copy these MSG files to a folder and change it to a file with the extension of EML. Start OE again, and drag and drop the modified EML format file from the "Resource Manager" to the OE mailbox to import the file.

Tips

★Tested, the MSG file generated by Outlook 2003 cannot pass the test in OE 6. This technique is related to the Outlook that generates MSG and the OE version. Sometimes it cannot be successful.

★Finally, let's talk about how to modify the extension in batches: Start Total Commander, select the file you want to change (multiple options can be selected), and press Ctrl + T, enter the changed extension in the "extension" text box in the window that opens, and then click "start. Of course, you can also switch to the folder where you want to change the file name in the DOS window, and then use ren to change the file name. If we want to change all the Excel files to flc files, just enter the ren *. cel *. flc file.