Grazie ma continua nel "problema":
codice:
FUNCTION dataShort(dtData) 
dataShort = Year(dtData) &"/"& right("00"&month(dtData),2) &"/"& right("00"&day(dtData),2)
END FUNCTION 

DATA1  = datashort(Request.Form("DATA1"))
DATA2  = datashort(Request.Form("DATA2"))

for i = 0 to datediff("d",cDate(DATA1),cDate(DATA2)) step 1
  strSql = "INSERT INTO TABELLA_DATE (DATA1,DATA2) values (#" &dataShort(dateadd("d",cDate(DATA1),i))& "#, #" &DATA2 &"#)"
 objCONN.execute strSql
next