Share via


Regsvcs.exe (.NET Services Installation Tool)

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.

This tool is automatically installed with Visual Studio and with the Windows SDK. To run the tool, we recommend that you use the Visual Studio Command Prompt or the Windows SDK Command Prompt (CMD Shell). These utilities enable you to run the tool easily, without navigating to the installation folder. For more information, see Visual Studio and Windows SDK Command Prompts.

  • If you have Visual Studio installed on your computer: On the taskbar, click Start, click All Programs, click Visual Studio, click Visual Studio Tools, and then click Visual Studio Command Prompt.

    -or-

    If you have the Windows SDK installed on your computer: On the taskbar, click Start, click All Programs, click the folder for the Windows SDK, and then click Command Prompt (or CMD Shell).

  • 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 and Windows SDK Command Prompts

Other Resources

.NET Framework Tools