Dave Plummer, a retired Microsoft engineer, has developed TinyRetroPad, a Notepad-like application that is only 2.5 kilobytes in size. TinyRetroPad includes features such as Open, Save, Find and Replace, printing, font selection, word wrap, and an unsaved changes prompt. It is built on existing Windows components, allowing it to function efficiently without extensive resources. TinyRetroPad is based on Dave’s Tiny Editor and utilizes RICHEDIT50W for text handling. The application's file size increased incrementally with each feature added, with the final size being 2,476 bytes. Crinkler, a compression linker, was used to optimize the executable. TinyRetroPad is still in development, facing issues like high memory consumption and compatibility problems. In contrast, Windows 11's Notepad has become larger and more complex, weighing approximately 352KB and incorporating features that some users find unnecessary. Windows 11 LTSC retains the classic Notepad without modern features, while TinyRetroPad aims to demonstrate the potential for simplicity in application design.