Before 2019, Autodesk allowed license transfers for very old software. You could install Autosketch 2.1, then apply a patch. Autodesk has discontinued support for any Autosketch version prior to 9. Do not waste time looking for an official Autodesk patch.
"This app can’t run on your PC" or "The version of this file is not compatible with the version of Windows you’re running."
Running on Windows 10 is challenging because the software is a 16-bit application originally designed for Windows 3.1 and Windows 95 . Modern 64-bit versions of Windows 10 do not natively support 16-bit software, meaning the installer and the program likely will not launch directly. Compatibility Solutions