2.2.3.8 DATA_EXTENSION_PREFIX
The DATA_EXTENSION_PREFIX structure contains a data component size and type. The structure of DATA_EXTENSION_PREFIX is as follows.
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typedef struct _DATA_EXTENSION_PREFIX { ULONG Size; LONG Type; } DATA_EXTENSION_PREFIX, *PDATA_EXTENSION_PREFIX;
Size: A 32-bit, unsigned integer that specifies the size of the data component, including this prefix.
Type: A 32-bit, unsigned integer that specifies the type of the data component. It MUST be one of the following values.
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Value
Meaning
0x00000000
Terminates a data extension record. MUST NOT be used.
0x00000001
Data checksum record using an MD5 hash.
0x00000002
Data retry time-out record.