I am trying to write a program that will map net work drives on Nt W/S 4.0 sp5 using VB4. I am using the WNetAddConnection call - some times it works, some times it gives me error 1326 or 1909. Right after it gives me the error I can go to Nt Explorer and map the exact network drive I just tried with no problem. I have tried using an administrative password in the call with no luck. On some machines some drives work fine and other drives fail.