Damm thing!

I want to open a .dbf db and do a SELECT, I am using ADO

It works when no one is using the .dbf, but it wont be the case, so I get this error:
Could not lock table 'tablename'; currently in use by user...

Here's my connection string:
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & bookManagerPath & ";Extended Properties=DBASE IV;Mode=Read;"