License Compiler (Lc.exe)
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License Compiler (Lc.exe)

The License Compiler reads text files that contain licensing information and produces a .licenses file that can be embedded in a common language runtime executable as a resource.

lc /target:targetPE /complist:filename [/outdir:path]
/i:modules [/nologo] [/v]
Option Description
/complist:filename Specifies the name of a file that contains the list of licensed components to include in the .licenses file. Each component is referenced using its full name with only one component per line.

Command-line users can specify a separate file for each form in the project. Lc.exe accepts multiple input files and produces a single .licenses file.

/h[elp] Displays command syntax and options for the tool.
/i:modules Specifies the list of modules that contain the components listed in the /complist file.
/nologo Suppresses the Microsoft startup banner display.
/outdir:path Specifies the directory in which to place the output .licenses file.
/target:targetPE Specifies the executable for which the .licenses file is being generated.
/v Specifies verbose mode; displays compilation progress information.
/? Displays command syntax and options for the tool.


  1. If you are using a licensed control MyCompany.Samples.LicControl1 contained in Samples.DLL in an application called HostApp.exe, you can create HostAppLic.txt that contains the following.
    MyCompany.Samples.LicControl1, Samples.DLL
  2. Create the .licenses file called HostApp.exe.licenses using the following command.
    lc /target:HostApp.exe /complist:hostapplic.txt /i:Samples.DLL /outdir:c:\bindir
  3. Build HostApp.exe including the .licenses file as a resource. If you were building a C# application you would use the following command to build your application.
    csc /res:HostApp.exe.licenses /out:HostApp.exe *.cs

The following command compiles myApp.licenses from the lists of licensed components specified by hostapplic.txt, hostapplic2.txt and hostapplic3.txt. The modulesList argument specifies the modules that contain the licensed components.

lc /target:myApp /complist:hostapplic.txt /complist:hostapplic2.txt /complist: hostapplic3.txt /i:modulesList

See Also

.NET Framework Tools | Assembly Linker (Al.exe)

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