How do I unset password of an MS access .mdb file using VB. net?

Soemone pls help...I've hunted high and low!!!

I'm using VB.net 2002 and access 2003

My connection string looks like this when i need to open my database

Dim cn As New ADODB.Connection()
Cn = New ADODB.Connection()
cn.Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=..\REPORTS_DB\TEST_TTN_0001.mdb;Jet OLEDB: Database Password=xyyz")