Get data from asp file to vb varible

Hi, my application has a log in form where it sends a username and password into a asp file which checks in a encrypted file, but it then needs to return a whether the username and password match the encrypted file (which cannot be downloaded with all data still intact). How do i return somthing from ASP into vb.net 2005 express edition . I have to do it this way as my server dosn't support MySQL.

To send data to asp file i do

Public Sub aspBounce(ByVal URL As String)

On Error Resume Next

Dim ob

ob = CreateObject("InternetExplorer.Application")

With ob

.Visible = False

End With

End Sub

I call this by

aspBounce("file.asp Username=Test&Password=TestPassword")

Thx