| mfsGetGameCode | Obtaining Company and Game code |
| mfsSetGameCode | Setting Company and Game code |
| mfsStrCmp | Comparing Character Strings |
| mfsStrnCmp | Comparing Character Strings |
| mfsStrCpy | Coping Character Strings |
| mfsStrnCpy | Coping Character Strings |
| mfsStrLen | Calculating Length of Character Strings |
| mfsStrrChr | Search the Final Location of Character C |
| mfsStrCat | Connecting Character Strings |
| mfsStrWCmp | Comparing Character Strings Wild Card compatible |
| mfsSetLeoBusyFunc | Registering PI Control Functions Before using PI |
| mfsSetLeoReadyFunc | Registering PI Control Functions After using PI |
| mfsSetLeoErrorFunc | Registering Error Management Functions in Leo Function |