What is a DLL file?
DLL files are dynamic library files. They are executable files that allow programs to share the code and other resources necessary to execute special tasks. The DLL file provided by Windows contains many functions and resources that allow Windows-based programs to operate in Windows.
In most cases, a DLL is a file with a DLL extension, but it may also be an EXE or another extension. They provide code, data, or functions to programs running in Windows. The program can open, enable, query, disable, and close the driver according to the commands in the DLL file.
DLL can be found in the "C: Windows" directory "C: Windows/System" directory and the installation directory of the program. If the program is started but one or more DLL files are lost or destroyed, an error message is received, for example, "xyz. dll cannot be found ". If the Started program contains an expired DLL file or unmatched DLL file, the "undefined dynamic link call" message will appear. In this case, you can find the correct DLL file on another computer and copy it to the appropriate directory to run the program correctly.
Windows 7 quickly cleans up non-running dll files
1. The registry editor is still called up. Click start -- run -- enter regedit
2. Click the option in the left window and find the HKKEY_LOCAL_MACHINE--SOFTWARE -- Microsoft -- Windows -- CurrentVersion -- Explorer
3. Create an item named AlwaysUnloadDLL on the right to enable the function of clearing the dynamic linked files in memory that are not used.
4. Change the value to 1 and enable it. If it is set to 0, this function is disabled.
Well, the above is about how to quickly clean up Dll junk files in win7. I hope this tutorial will help you. I believe you also know what the dll file is and how to clean it.