Chances are that your assembly has a pin in the registry which stops it from being uninstalled. You can find these here: * HKEY_CURRENT_USER\Software\Microsoft\Installer\Assemblies\Global* HKEY_LOCAL_MACHINE\Software\Classes\Installer\Assemblies\Global Just remove the keys, and you can now uninstall them from the GAC. 相关文章： 2021-05-16 2021-10-07 2021-12-29 2022-12-23 2022-12-23 2021-10-02