#define XPRESS_MAGIC "\x81\x81xpress"
typedef struct _IMAGE_XPRESS_HEADER {
UCHAR Signature[0x08]; // 0x000
struct {
UCHAR u08; // 0x008
UCHAR u09;
UCHAR u0A;
UCHAR u0B;
} Size;
ULONG u0C; // 0x00C
ULONG Checksum; // 0x010
ULONG u14; // 0x014
ULONG u18; // 0x018
ULONG u1C; // 0x01C
} IMAGE_XPRESS_HEADER, *PIMAGE_XPRESS_HEADER;