Closing webpage that calls download file

[I Haas]

C#, .Net framework 1.1 visual studio 2003
From a aspx page I want to open the dialog box (download;save/open/cancel)
I want to close the aspx page after the dialogbox opens.
I open the dialog box from "Register.aspx.cs" with
Response.Redirect(sPathAndFile,false);
where sPathAndFile is the path and filename of a zipfile.

The sPathAndFile is filled by calling an SQL server database just before the Redirect


Response.Redirect(sPathAndFile,true); doesn't close the webpage

Response.Redirect(sPathAndFile,false);
followed by
Reponse.End doesn;'t work

calling
Response.Write("<script>window.close()</script>"); or
Response.Close();
don't work

What can I do?

private void OpenFile()
{
if (!(Test.Empty(Session[SessionVariableNames.UserId] ))&&(!Test.Empty(Session[SessionVariableNames.DatasetId] )))
{
sqlDataAdapterGetPathFileName.SelectCommand.Parame ters["@DatasetId"].Value =Session[SessionVariableNames.DatasetId] ;
sqlDataAdapterGetPathFileName.Fill(dataSetRegister Use1);
string sPathAndFile ;
sPathAndFile=dataSetRegisterUse1.dbo_ISRIC_GetPath AndFileName[0].PathDirectory;

Response.Redirect(sPathAndFile,false);
}

[Plater]

What makes the call to that page? Is it an html link?
If you open your redirect page in a "new window" that new window never actually appears (it goes right to download/save/whatever dialog).
You could also attach a javascript on to it so that the page is closed.