VISUAL BASIC

WHEN I DEVELOPING DATABASE WITH FOXPRO
I CANNOT DELETE DATABASE RECCORDS PERMENENTLY
IF I OPEN DELETED RECORDS ON FOXPRO IT WILL OPEN
(HOW CAN I DELETE THIS RECORDS FROM VB)
WHEN ACCESSING THE DATABASE ON NETWORK(FOXPRRO) ON SAME
TIME I CANNOT SEE THE CHANGES AFTER ANY CLIENT UPDATED RECORDS