Function name	Ordinal	Module name	Declaration	Comments
DosError	DOSCALLS	APIRET DosError(ULONG error)
DosQueryCurrentDir	DOSCALLS	APIRET DosQueryCurrentDir(ULONG disknum, PBYTE pBuf, PULONG pcbBuf);
DosExecPgm	DOSCALLS	APIRET DosExecPgm(PCHAR pObjname, LONG cbObjname, ULONG execFlag, PSZ pArg, PSZ pEnv, PRESULT pRes, PSZ pName);
VioWrtTTY	EMXWRAP	USHORT VioWrtTTY(PCH CharStr, USHORT Length, HVIO VioHandle);
DosSetDefaultDisk	DOSCALLS	APIRET DosSetDefaultDisk(ULONG disknum);
KbdStringIn	EMXWRAP	USHORT KbdStringIn(PCH pch, PSTRINGINBUF pchin, USHORT Flag, HKBD hkbd);
DosQueryCurrentDisk	DOSCALLS	APIRET DosQueryCurrentDisk(PULONG pdisknum, PULONG plogical);
DosSetCurrentDir	DOSCALLS	APIRET DosSetCurrentDir(PSZ pszDir);
DosWrite	DOSCALLS	APIRET DosWrite(HFILE hFile, PVOID pBuffer, ULONG cbWrite, PULONG pcbActual);
DosQuerySysInfo	DOSCALLS	APIRET DosQuerySysInfo(ULONG iStart, ULONG iLast, PVOID pBuf, ULONG cbBuf);
DosExit	DOSCALLS	DosExit(ULONG action, ULONG result);