TekOTP generates one-time passwords based on RFC 2289, and is designed to run on Windows.

This OTP generator employs MD4, MD5, and SHA-1 algorithms to generate your one-time passwords with high security. The program boasts a clear, intuitive graphical user interface, making it very easy to use.
To create a new OTP, simply enter the relevant seed, pass phrase, count, and algorithm for your OTP and then click on the 'Calculate' button. The generated OTP will be instantly copied to your Windows clipboard.
Additionally, TekOTP can be used through a command line interface. Simply execute TekOTP from the command line with the -h parameter to see the various usage options available to you.
Version 1.4.2: Command line interface has been added