What is the Purpose of rundll32.exe and rundll.exe Commands on Windows?

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SUMMARY

The discussion focuses on the purpose of rundll32.exe and rundll.exe commands in Windows, which are used to execute functions from Dynamic Link Library (DLL) files. DLL files serve as "helper programs" for other software and are essential for hardware drivers. Users should avoid deleting DLL files unless they fully understand their function, as they are integral to system operations. The commands rundll.exe and rundll32.exe specifically allow for the execution of functions within these DLLs.

PREREQUISITES
  • Understanding of Dynamic Link Library (DLL) files
  • Familiarity with Windows operating system commands
  • Basic knowledge of software architecture and modules
  • Awareness of hardware driver functionality
NEXT STEPS
  • Research the specific functions of rundll.exe and rundll32.exe commands
  • Learn about the structure and purpose of Dynamic Link Libraries (DLLs)
  • Explore how to safely manage DLL files in Windows
  • Investigate the role of DLLs in hardware driver operations
USEFUL FOR

This discussion is beneficial for Windows users, software developers, system administrators, and anyone interested in understanding the functionality and management of DLL files and related commands.

jill40
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I've been seeing this certain file extension lately on my computer, but I do not know what programs to run them. What are file extension dll?
 
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DLL is most commonly a "Dynamic Linked Library". DLL files are not intended for users to open/run. They contain "helper programs" that are used by other programs.

Here is a helpful source for future reference : http://www.file-extensions.org/dll-file-extension
 
Never delete them...They also are used for hardware drivers on your computer too.
 
Let's just cut through it, they're modules (code) used in software. Don't delete them unless you know exactly what they do (chances are you don't in 99.99% of cases).
 
there is a command under Windows called rundll.exe and rundll32.exe

http://support.microsoft.com/kb/164787

that allow you to call functions from a DLL that are explicitly written to be called by them.
 

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