short xppSubCode; 2 28

char xppTimeout; 1 30 Retry interval ( seconds)

char xppRetry; 1 31 Retry count

short filler1; 2 32

Ptr zipBuffPtr; 4 34 Pointer to buffer (must be 578

bytes)

short zipNumZones; 2 38 No. of zone names in this response

char zipLastFlag; 2 40 Non-zero if no more zones

char filler2; 1 41 Filler

char zipInfoField[70]; 70 42 On initial call, set first word to zero