Six practical functions of system DLL files

Source: Internet
Author: User

Source: http://publish.it168.com

DLL is a "Unfamiliar file" for many users. Such files can be seen everywhere in Windows systems, but they do not know much about their applications. In fact, using DLL files can not only enhance practical functions for the system, but also solve some difficult problems.

1. Use a DLL file to create a virtual desktop

Generally, a third-party application is required to achieve the Windows virtual desktop effect. Have you ever thought that a DLL file in a partition can add several virtual desktop systems for Windows? Download a DLL file "msdvm. dll" to the system (click to download) and decompress it to the "System Disk: windowssystem32" directory. Then, register the DLL, enter regsvr32 msvdm. dll in "start"> "run", and confirm the operation.

At this time, the virtual desktop has been successfully deployed in the Windows system. Right-click the Windows taskbar and choose toolbar> MSVDM from the shortcut menu ". After that, the "MSVDM" Toolbar will be added.



Right-click the desktop, and select "Shared desktop tops" in the pop-up menu to share the desktop. Select "Show Quick Switch Buttons" to display the Quick Switch button for the virtual desktop.

Next, we will configure the virtual desktop. Right-click "MSVDM" and choose "Configure Desktop Images" from the shortcut menu. Then, view the "Desktop" tab in the pop-up window and select one or four virtual desktops, set the desktop background and display location.



If you want to quickly enable the specified virtual desktop through the hot key, switch to the "Shortcut cut Keys" tab and specify the Shortcut Keys for each virtual desktop one by one.



Afterwards, we can switch to the virtual desktop or preview through the shortcut button on the "MSVDM" toolbar, or through the hotkey operation. To cancel the virtual desktop effect, simply remove the "MSVDM" option from the Windows "toolbar.

2. Replace/delete a running DLL file

In Windows, the DLL files in use cannot be deleted or replaced. Even if you switch to safe mode, the files will not work. However, we can use the "CopyLock" tool to break through Windows Restrictions and enforce the operation. This method is especially suitable for clearing DLL Trojans or replacing DLL system files.

CopyLock V1.09 Build 47.1

Software size: 124 KB
Software language: Simplified Chinese
Software type: System Software/System assistance
Software rating:★★★★
Running Environment: Win9x/NT/2000/XP


After running the program, view the main interface.



Click "add" and select "replace file" or "delete file" as needed in the pop-up menu ". Then, select the DLL file added to the List and perform the delete or replace operation.

3. Register DLL and resume the FlashGet right-click menu

After FlashGet is installed, right-click the software download link in the browser. The FlashGet download item is displayed in the pop-up menu. However, recently, the FlashGet download item in the right-click menu failed and the software reinstallation failed.

In this case, you only need to register the corresponding DLL Control. Go to the FlashGet installation directory on the "command prompt" interface, and then enter "Regsvr32/s jccatch. dll" to restore the installation.



4. "abandon" DLL file to simplify the program function

If you suspect that an application is too bloated or want to block unwanted features, you can delete DLL files to achieve this. Among them, the most well-known method is to delete the relevant DLL files for QQ to lose weight. In addition, I will introduce the following application:

If you want to block Kingsoft 2005's screen keyword retrieval function to solve the buffer overflow problem between Kingsoft 2005 and McAfee VirusScan Enterprise v8.0i, you only need to delete "XdictGrb" in the installation directory of "Kingsoft 2005. dll "dynamic link library file.

5. One-click access to DLL file registration and anti-registration

In general, we need to run the registration and anti-registration DLL file commands in the command line window or the running dialog box. For ease of operation, we will add this feature in the system right-click menu. In the text editor, enter the following content, save it as the "*. reg" file, and double-click to import the registry.

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOTdllfileshell]
[HKEY_CLASSES_ROOTdllfileshellegister]
[HKEY_CLASSES_ROOTdllfileshellegistercommand]
@ = "Regsvr32% 1"
[HKEY_CLASSES_ROOTdllfileshellUnregister]
"Command" = "regsvr32% 1/u"
[HKEY_CLASSES_ROOTdllfileshellUnregistercommand]
@ = "Regsvr32% 1/u"

In this way, we can directly register or unregister the DLL file in the system right-click menu.

6. Trace the source to clear the DLL file "not please come here"

Many of my friends may have encountered this situation. When I open IE, an advertisement window is always automatically opened. Generally, this is because the system loads a DLL or OCX control that is "not recommended. We can use the anti-browser hijacking program HijackThis to try to analyze the DLL file that is "troublesome.

On the initial page, click "Do a system Scan and save a logfile. After that, the program will automatically scan the registry and specific files on the hard disk to find the malicious program in the system to "hijack" the browser portal. After scanning, several suspicious items are displayed in the central list. Focus on the O2 Project (indicating the Browser Helper Object) and find "O2-BHO: NaviHelperObj Class-{3E422F49-1566-40D3-B43D-077EF739AC32}-C: WINDOWSsystem32NaviHelper. dll "project is an unknown DLL file automatically loaded.

After selecting this option, click the "Fix checked" button to modify it immediately or register the "Navihelper. dll" file.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.