The DOS and Windows ports of SPITBOL are now available on the SPITBOL Downloads section
The DOS version is S.COM. This is 16-bit 8086 version and can be run under Linux using the package ‘dosqemu.’
The Windows version is SPITBOL-3.7-win.exe. This is 32-bit version and can be run under Linux using Wine. You also need to download 32RTM.exe to run this program. I don’t know why. I just know SPITBOL complains if it is not present.
These are the *only* executable versions of SPITBOL at hand. S.COM dates back to 1983. SPITBOL.exe was last updated a decade or so ago.
Both are as fast as the wind, and a Linux version should be available shortly. 🙂