Regsvcs.exe (.NET Services Installation Tool)

Updated: June 2010

The .NET Services Installation tool performs the following actions:

• Loads and registers an assembly.

• Generates, registers, and installs a type library into a specified COM+ application.

• Configures services that you have added programmatically to your class.

The .NET Services Installation tool is automatically installed with Visual Studio. To start the tool, use the Visual Studio Command Prompt. At the command prompt, type the following:

regsvcs [/c | /fc | /u] [/tlb:typeLibraryFile] [/extlb]
[/reconfig] [/componly] [/appname:applicationName]
[/nologo] [/quiet]assemblyFile.dll 

Parameters

Argument	Description
assemblyFile.dll	The source assembly file. The assembly must be signed with a strong name. For more information, see Signing an Assembly with a Strong Name.

Option	Description
/appdir:path	Specifies the root directory of the application.
/appname:applicationName	Specifies the name of the COM+ application to either find or create.
/c	Creates the target application.
/componly	Configures components only; ignores methods and interfaces.
/exapp	Specifies to the tool to expect an existing application.
/extlb	Uses an existing type library.
/fc	Finds or creates the target application.
/help	Displays command syntax and options for the tool.
/noreconfig	Does not reconfigure an existing target application.
/nologo	Suppresses the Microsoft startup banner display.
/parname:name	Specifies the name or id of the COM+ application to either find or create.
/reconfig	Reconfigures an existing target application. This is the default.
/tlb:typelibraryfile	Specifies the type library file to install.
/u	Uninstalls the target application.
/quiet	Specifies quiet mode; suppresses the logo and success message display.
/?	Displays command syntax and options for the tool.

Remarks

Regsvcs.exe requires a source assembly file specified by assemblyFile.dll. This assembly must be signed with a strong name. For more information on strong name signing, see Signing an Assembly with a Strong Name. The names of the target application and the type library file are optional. The applicationName argument can be generated from the source assembly file and will be created by Regsvcs.exe, if it does not already exist. The typelibraryfile argument can specify a type library name. If you do not specify a type library name, Regsvcs.exe uses the assembly name as the default.

When Regsvcs.exe registers a component's methods, it is subject to the demands and link demands on those methods. Because the tool executes in a fully-trusted environment, most demands for a permission succeed. However, Regsvcs.exe cannot register components with methods protected by a demand or link demand for the StrongNameIdentityPermission or the PublisherIdentityPermission.

You must have administrative privileges on the local computer to use Regsvcs.exe.

If Regsvcs.exe fails while performing any of these actions, it displays corresponding error messages.

Examples

The following command adds all public classes contained in myTest.dll to myTargetApp (an existing COM+ application) and produces the myTest.tlb type library.

regsvcs /appname:myTargetApp myTest.dll

The following command adds all public classes contained in myTest.dll to myTargetApp (an existing COM+ application) and produces the newTest.tlb type library.

regsvcs /appname:myTargetApp /tlb:newTest.tlb myTest.dll

See Also

Tasks

How to: Sign an Assembly with a Strong Name

Reference

Visual Studio Command Prompt

Other Resources

.NET Framework Tools

Change History

Date	History	Reason
June 2010	Removed outdated version designations.	Customer feedback.