So, it is incomplete and useless, right?
I also found "Master Mind for the OS/2 2.x Presentation Manager" by Peter Wansch, but I'm not sure is also from that.
Strictly it's useless because it's incomplete. Nevertheless the SPR file shows which files are missing, so it's only useless if we cannot obtain those specific missing files anymore.
Later stand-alone games of Wansch became a component of the Entertainment Pack for OS/2.
"ProjectName=E:\PROGRAMIEREN\PROJEKTE\MasterMind\Mastermind.spr" indicates that the author speaks German. The previous quite could have been inserted by any German programmer (e.g. some template of Sibyl itself), but the user has created the subdirectories "PROGRAMMING" and "PROJECTS".
As such Wansch qulaifies as a canddate. There's a Vienna and Austria in his MASTER.EXE (indeed Master Mind, with a space).
If you have an EXE produced with Sibyl, then you could try to open that Sibyl EXE and Wansch's MASTER.EXE with E.EXE or a hex editor to check if the "fingerprint" is about the same. Typically readable text, and where it can be found. MASTER.EXE doesn't contain "sibyl", but e.g. a lxlited pathetic game written by me contains the text "SETUPARG.ASM". That text me be specific for IBM VAC. An extreme positive sample is opening the EXE of Tablica/2 version 1.20 with E.EXE, and next guess the programming language and what the source code was. If I open a FIREFOX.EXE with a hex editor, then page 1 shows a clue ("OS/2 executable
module built for kLIBC v0.6.4+") which indicates that FIREFOX.EXE wasn't produced by a Sibyl compiler.
Please note that a non-negative possible Sibyl footprint of MASTER.EXE doesn't imply that Wansch is the German speaking author of your project files. It just is more likely if Wansch used Sibyl (too). But his final product (now) has that possibly different name, "Master Mind".
