Download of Direct I/O 4.4.274 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The default filename for the program's installer is probrpt.exe. The actual developer of the software is Ingenieurbuero Paule. Direct I/O lies within System Utilities, more precisely Device Assistants. Also the program is known as "Direct IO". The most popular version of the Direct I/O 4.4. We recommend checking the downloaded files with any free antivirus.
From the developer:
Direct I/O is the world's first device driver for Microsoft Windows NT, Windows 2000 and Windows XP which enables the direct hardware access for your existing software without any programming
efforts on your side.
It is especially useful for existing 16bit software which accesses special hardware, e.g.
programmers or data acquisition boards. Even 32bit software developed by you benefits from
the easy access to the hardware.
You may want to check out more software, such as io.js, MobiKin Doctor for iOS or FoneLab iOS System Recovery, which might be similar to Direct I/O.
Browser extensions
General