Microsoft (R) .NET Global Assembly Cache Utility.  Version 1.1.4322.12
Copyright (C) Microsoft Corporation 1998-2002. All rights reserved.

Usage: Gacutil <command> [ <options> ]
Commands:
  /i <assembly_path> [ /r <...> ] [ /f ]
    Installs an assembly to the global assembly cache. <assembly_path> is the
    name of the file that contains the assembly manifest.
    Example: /i myDll.dll /r FILEPATH c:\projects\myapp.exe "My App"

  /il <assembly_list_file> [ /r <...> ] [ /f ]
    Installs one or more assemblies to the global assembly cache.  
    <assembly_list_file> is the path to a text file that contains a list of 
    assembly manifest file paths. Individual paths in the text file must be 
    separated by CR/LF.
    Example: /il MyAssemblyList.txt /r FILEPATH c:\projects\myapp.exe "My App"
      myAssemblyList.txt content:
      myAsm1.dll
      myAsm2.dll

  /u <assembly_name> [ /r <...> ]
    Uninstalls an assembly. <assembly_name> is the name of the assembly
    (partial or fully qualified) to remove from the Global Assembly Cache.
    If a partial name is specified all matching assemblies will be uninstalled.
    Example:
      /u myDll,Version=1.1.0.0,Culture=en,PublicKeyToken=874e23ab874e23ab 
      /r FILEPATH c:\projects\myapp.exe "My App"

  /uf <assembly_name>
    Forces uninstall of an assembly by removing all traced references.
    <assembly_name> is the full name of the assembly to remove. Assembly will
    be removed unless referenced by Windows Installer.
    ! Warning: use the /uf command with care as applications may fail to run !
    Example: /uf myDll,Version=1.1.0.0,Culture=en,PublicKeyToken=874e23ab874e23ab

  /ul <assembly_list_file> [ /r <...> ]
    Uninstalls one or more assemblies from the global assembly cache.  
    <assembly_list_file> is the path to a text file that contains a list of 
    assembly names. Individual names in the text file must be 
    separated by CR/LF.
    Example: /ul myAssemblyList.txt /r FILEPATH c:\projects\myapp.exe "My App"
      myAssemblyList.txt content:
      myDll,Version=1.1.0.0,Culture=en,PublicKeyToken=874e23ab874e23ab
      myDll2,Version=1.1.0.0,Culture=en,PublicKeyToken=874e23ab874e23ab

  /ungen <assembly_name>
    Uninstalls a native image installed via the NGEN utility. <assembly_name>
    is the name of the assembly for which native images are to be uninstalled.
    The assembly itself will remain in the global assembly cache.
    Example: /ungen myDll

  /l [ <assembly_name> ]
    Lists the contents of the global assembly cache. When the optional 
    <assembly_name> parameter is specified only matching assemblies are listed.

  /lr [ <assembly_name> ]
    Lists the contents of the global assembly cache including traced reference 
    information. When the optional <assembly_name> parameter is specified only 
    matching assemblies are listed.

  /cdl
    Deletes the contents of the download cache

  /ldl
    Lists the contents of the download cache

  /? 
    Displays a detailed help screen

Old command syntax:
  /if <assembly_path>
    equivalent to /i <assembly_path> /f

  /ir <assembly_path> <reference_scheme> <reference_id> <description>
    equivalent to /i <assembly_path> /r <...>

  /ur <assembly_name> <reference_scheme> <reference_id> <description>
    equivalent to /u <assembly_path> /r <...>

Options:
  /r <reference_scheme> <reference_id> <description>
    Specifies a traced reference to install (/i, /il) or uninstall (/u, /ul).
      <reference_scheme> is the type of the reference being added 
        (UNINSTALL_KEY, FILEPATH or OPAQUE). 
      <reference_id> is the identifier of the referencing application, 
        depending on the <reference_scheme>
      <description> is a friendly description of the referencing application.
    Example: /r FILEPATH c:\projects\myapp.exe "My App"

  /f 
    Forces reinstall of an assembly regardless of any existing assembly with 
    the same assembly name.

  /nologo
    Suppresses display of the logo banner

  /silent
    Suppresses display of all output