DLL is short for Dynamic Link Library, meaning Dynamic Link Library. In Windows, many applications are not a complete executable file. They are divided into relatively independent dynamic link libraries, that is, DLL files, which are placed in the system. When we execute a program, the corresponding DLL file will be called. An application may have multiple DLL files, and a DLL file may be shared by several applications. Such DLL files are called shared DLL files. DLL files are generally stored in the C: WindowsSystem directory.
1. How to understand which DLL files are used by an application
Right-click the application and choose "Quick View" from the shortcut menu, in the "Import table" column of the "Quick View" window that appears, you will see the usage of DLL files.
2. How to know that the DLL file is used by several programs
Run Regedit and enter HKEY_LOCAL_MACHINESoftwareMicrosrftWindowsCurrent-
View the VersionSharedDlls subkey. All DLL files and their related data are displayed in the right window. The numbers in the parentheses on the right of the data indicate that they are used by several programs. (2) it indicates that it is used by two programs, and (0) indicates that no program is used. You can delete it.
3. How to Solve DLL file loss
When detaching a file, you are reminded that deleting a DLL file may affect the running of other applications. When you uninstall the software, you may accidentally delete the shared DLL file. Once the DLL file is lost, you can find the DLL file in Sysbckup (System Backup folder) and copy it to the System folder. If this is not the case, "*** dll file loss..." always occurs when the computer is started ......" You can run Msconfig in "Start/run". After Entering the System Configuration Utility dialog box, click "System. ini "label to find the DLL file that is prompted to be lost, so that it is not selected, so that no error prompt will appear at boot.