Compress the database simultaneously set the password

Quote Microsoft Jet and Rel ........., DLL named msjro.dll

...

Then use jro;

JetEngine X = New JetEngine ();

X.CompactDatabase ("provider = microsoft.jet.OLEDB.4.0; Data Source = E: //db.mdb; jet oledb: Database password = 123", "provider = microsoft.jet.Oledb.4.0; data source = e : //db.mdb; Jet OLEDB: Database Password = 456 ");