Response.Redirect and Response.AddHeader problem

[S.Kartikeyan]

I have a GetDotUlsStudentFile.aspx page which is accessed by another
aspx page like this.
Response.Redirect("GetDotUlsStudentFile.aspx?v=mms://myserver.mydomain/courses/xyz.wmv");
In GetDotUlsStudentFile.aspx i do a
Response.AddHeader(Content-Disposition to server a .ulsstudent
fileopendialog box prompt when accessed.

With some versions of internet Explorer i am getting xyz.ulsstudent
file as expected.
But with latest version of internet explorer that comes with win2k3 i
am getting a xyz.wmv file open dialog box prompt.

Can a GetRequest have fully qualified urls.
Or
do i need to use some url encoding ?
If i have to do ,how to do it.
I want the behaviour to be same accross all versions of IE.
Other browsers doesn't have this problem

s.Kartikeyan