These are some guideline mount priorities. Priorities can really be any number. 
| Enumerator | 
|---|
| MFMP_Highest  | 
 Highest priority filesystem (first in the search queue)  
 | 
| MFMP_VeryHigh  | 
 Very high priority filesystem.  
 | 
| MFMP_AboveNormal  | 
 Above normal priority filesystem.  
 | 
| MFMP_Normal  | 
 Normal priority filesystem.  
 | 
| MFMP_BelowNormal  | 
 Below normal priority filesystem.  
 | 
| MFMP_VeryLow  | 
 Very low priority filesystem (last in the search queue)  
 | 
| MFMP_ForceInt  | 
 Force MFMountPriority to an int type.  
 |