i wrote a software which would work perfectly fine on vb.net with connection string:
SQLConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename='" & a & "';Initial Catalog='" & f & "';Integrated Security=True;User Instance=True"
but if i try and run it on a pc with sql server 2005 installed it fails to run
what changes do i need to do to make it run