What Does IIS Crypto Do?
IIS Crypto updates the registry using the same settings from this article by Microsoft. It also updates the cipher suite order in the same way that the Group Policy Editor (gpedit.msc) does. Additionally, IIS Crypto lets you create custom templates that can be saved for use on multiple servers. The command line version contains the same built-in templates as the GUI version and can also be used with your own custom templates. IIS Crypto has been tested on Windows Server 2012 R2, 2016, 2019, 2022 and 2025.
IIS Crypto requires administrator privileges. If you are running under a non-administrator account, the GUI version will prompt for elevated permissions. The command line version must be run from a command line that already has elevated permissions.