From Winnt.h in the MS Platform SDK:

#define STATUS_WAIT_0                    ((DWORD   )0x00000000L)    
#define STATUS_ABANDONED_WAIT_0          ((DWORD   )0x00000080L)    
#define STATUS_USER_APC                  ((DWORD   )0x000000C0L)    
#define STATUS_TIMEOUT                   ((DWORD   )0x00000102L)    
#define STATUS_PENDING                   ((DWORD   )0x00000103L)    
#define DBG_EXCEPTION_HANDLED            ((DWORD   )0x00010001L)    
#define DBG_CONTINUE                     ((DWORD   )0x00010002L)    
#define STATUS_SEGMENT_NOTIFICATION      ((DWORD   )0x40000005L)    
#define DBG_TERMINATE_THREAD             ((DWORD   )0x40010003L)    
#define DBG_TERMINATE_PROCESS            ((DWORD   )0x40010004L)    
#define DBG_CONTROL_C                    ((DWORD   )0x40010005L)    
#define DBG_CONTROL_BREAK                ((DWORD   )0x40010008L)    
#define DBG_COMMAND_EXCEPTION            ((DWORD   )0x40010009L)    
#define STATUS_GUARD_PAGE_VIOLATION      ((DWORD   )0x80000001L)    
#define STATUS_DATATYPE_MISALIGNMENT     ((DWORD   )0x80000002L)    
#define STATUS_BREAKPOINT                ((DWORD   )0x80000003L)    
#define STATUS_SINGLE_STEP               ((DWORD   )0x80000004L)    
#define DBG_EXCEPTION_NOT_HANDLED        ((DWORD   )0x80010001L)    
#define STATUS_ACCESS_VIOLATION          ((DWORD   )0xC0000005L)    
#define STATUS_IN_PAGE_ERROR             ((DWORD   )0xC0000006L)    
#define STATUS_INVALID_HANDLE            ((DWORD   )0xC0000008L)    
#define STATUS_NO_MEMORY                 ((DWORD   )0xC0000017L)    
#define STATUS_ILLEGAL_INSTRUCTION       ((DWORD   )0xC000001DL)    
#define STATUS_NONCONTINUABLE_EXCEPTION  ((DWORD   )0xC0000025L)    
#define STATUS_INVALID_DISPOSITION       ((DWORD   )0xC0000026L)    
#define STATUS_ARRAY_BOUNDS_EXCEEDED     ((DWORD   )0xC000008CL)    
#define STATUS_FLOAT_DENORMAL_OPERAND    ((DWORD   )0xC000008DL)    
#define STATUS_FLOAT_DIVIDE_BY_ZERO      ((DWORD   )0xC000008EL)    
#define STATUS_FLOAT_INEXACT_RESULT      ((DWORD   )0xC000008FL)    
#define STATUS_FLOAT_INVALID_OPERATION   ((DWORD   )0xC0000090L)    
#define STATUS_FLOAT_OVERFLOW            ((DWORD   )0xC0000091L)    
#define STATUS_FLOAT_STACK_CHECK         ((DWORD   )0xC0000092L)    
#define STATUS_FLOAT_UNDERFLOW           ((DWORD   )0xC0000093L)    
#define STATUS_INTEGER_DIVIDE_BY_ZERO    ((DWORD   )0xC0000094L)    
#define STATUS_INTEGER_OVERFLOW          ((DWORD   )0xC0000095L)    
#define STATUS_PRIVILEGED_INSTRUCTION    ((DWORD   )0xC0000096L)    
#define STATUS_STACK_OVERFLOW            ((DWORD   )0xC00000FDL)    
#define STATUS_CONTROL_C_EXIT            ((DWORD   )0xC000013AL)    
#define STATUS_FLOAT_MULTIPLE_FAULTS     ((DWORD   )0xC00002B4L)    
#define STATUS_FLOAT_MULTIPLE_TRAPS      ((DWORD   )0xC00002B5L)    
#define STATUS_REG_NAT_CONSUMPTION       ((DWORD   )0xC00002C9L) 

I don't see c0000004, but c0000005 and c0000006 are in the list.

>Good morning all
>
>We all seem to be experiencing fatal exception errors in VFP7 and 8. In the UT threads there is advice to a) delete the foxuser.* files, b) reindex tables, or c) that the error relates to a hardware problem, or d) speculate that it is a Fox/WinXP issue. Sometimes the advice is inconsistent from one thread to the next.
>
>Does anybody know of a list that actually defines the C000000X, errors? In particular c4, 5 and 6?
>
>Thank You
>
>Donald Lowrey