When you specify the /tlb option, Regasm.exe generates and registers a type library describing the types found in the assembly. This option does not emit entries for TypeLibIDs or InterfaceIDs. The /regfile option only emits registry entries for managed classes. reg file does not contain any registry updates that can be made by user-defined register functions. reg file with the Registry Editor tool (Regedit.exe). You can update the registry on a computer by importing the. reg file that contains the registry entries instead of making the changes directly to the registry. You can use the /regfile option to generate a. For example, /n is equivalent to /nologo and /t: outfile.tlb is equivalent to /tlb: outfile.tlb. You only need to provide enough of the option to uniquely identify it. The Regasm.exe command-line options are case insensitive. Specifies verbose mode displays a list of any referenced assemblies for which a type library needs to be generated, when specified with the /tlb option.ĭisplays command syntax and options for the tool. Omitting this option causes Regasm.exe to register the creatable classes in the assembly. Unregisters the creatable classes found in assemblyFile. Generates a type library from the specified assembly containing definitions of the accessible types defined within the assembly. Suppresses the display of success messages. You cannot use this option with the /u or /tlb options. Specifying this option does not change the registry. reg file for the assembly, which contains the needed registry entries. Suppresses the Microsoft startup banner display.

Specifies a directory containing assembly references. Specifies that this tool will only refer to type libraries that have already been registered. The assemblyFile argument that you specify with the /codebase option must be a strong-named assembly. Don't specify this option if you will subsequently install the assembly that you're registering into the global assembly cache. The Codebase entry specifies the file path for an assembly that's not installed in the global assembly cache. To run the tool, use Visual Studio Developer Command Prompt or Visual Studio Developer PowerShell.Īt the command prompt, type the following: Syntax regasm assemblyFile Ĭreates a Codebase entry in the registry.

Instances of classes within the assembly cannot be created from COM until they are actually registered. The class is registered only once, when the assembly is installed.

Once a class is registered, any COM client can use it as though the class were a COM class. The Assembly Registration tool reads the metadata within an assembly and adds the necessary entries to the registry, which allows COM clients to create.

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