SPF/PC v4 for MS-DOS has resurfaced on GitHub, offering a functional ISPF-like environment for MS-DOS systems. Created around 1993, this abandonware editor includes REXX support and works seamlessly on DOSBOX. The Tokyo-based user moshix uploaded the software without support guarantees, emphasizing users are on their own. This release provides a nostalgic tool for developers seeking panel navigation via Control+key commands.

Originally released in 1993, the software remains compatible with modern DOS environments despite its age. The GitHub repository includes the original source code and binaries, allowing developers to experience an early integrated development environment. While not actively maintained, its functional REXX implementation and panel-based navigation offer unique value for retro computing enthusiasts.

For developers exploring MS-DOS environments, this editor provides a practical, albeit unsupported, tool for panel-based navigation. Its re-release highlights the enduring interest in legacy systems and the preservation of historical software. Users should expect no updates or support, but can enjoy its functional features for specific development tasks.