struct _CC_ASYNC_READ_CONTEXT// Size=0x20
{
    unsigned char  ( * CompletionRoutine)(void * );// Offset=0x0 Size=0x8
    void * Context;// Offset=0x8 Size=0x8
    struct _MDL * Mdl;// Offset=0x10 Size=0x8
    char RequestorMode;// Offset=0x18 Size=0x1
    unsigned long NestingLevel;// Offset=0x1c Size=0x4
};