OCR?
Automated test tools for Windows have been around for decades, and while some have OCR capabilities, most do not need them. Automated tests can easily reach into the app and grab the status bar text, if the app uses Windows controls. And even in the modern world where there are too many windowing toolkits, tests should be able to rely on the controls exposed to Accessibility tools (like Screen Readers). On Windows we have the luxury of 2 standards, of course. Microsoft Active Accessibility or UI Automation API.