Incomputing,regsvr32 (Register Server) is acommand-line utility inMicrosoft Windows andReactOS^[1] for registering and unregisteringDLLs andActiveX controls in theoperating systemRegistry.^[2] Despite the suffix "32" in the name of the file, there are both32-bit and64-bit versions of this utility (with identical names, but in different directories).^[3]regsvr32 requires elevated privileges.^[4]

To be used withregsvr32, a DLL must export the functionsDllRegisterServer andDllUnregisterServer.^[5]

Theregsvr32command is comparable toldconfig inLinux.

regsvr32 shmedia.dll for registering a file

regsvr32 shmedia.dll /s for registering a file without the dialog box ( silent )

regsvr32 /u shmedia.dll for unregistering a file

regsvr32 shmedia.dll /u /s for unregistering a file without the dialog box ( silent )

If another copy ofshmedia.dll exists in the system search path, regsvr32 may choose that copy instead of the one in the current directory. This problem can usually be solved by specifying a full path (e.g.,c:\windows\system32\shmedia.dll) or using the following syntax:

regsvr32 .\shmedia.dll

• John Paul Mueller (2007).Windows Administration at the Command Line for Windows Vista, Windows 2003, Windows XP, and Windows 2000.John Wiley & Sons.ISBN 978-0470165799.
• Stanek, William R. (2008).Windows Command-Line Administrator's Pocket Consultant, 2nd Edition.Microsoft Press.ISBN 978-0735622623.

Wikibooks has a book on the topic of:Guide to Windows Commands

• Microsoft TechNet Regsvr32 article
• Explanation of Regsvr32 Usage and Error Messages
• C# Frequently Asked Questions: What is the equivalent to regsvr32 in .NET?

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