Hide page extension in browser address bar in ASP.Net

hi every one

i use querystring in my page when i click on button it go to Store.aspx

this is my query string code

 protected void ImageButton3_Click(object sender, ImageClickEventArgs e)
    {
 
        Response.Redirect("Store.aspx?behcode=" + Server.UrlEncode(txtNumeric.Text));
     


    }

in addressbar show this

behtob.com/Store.aspx?Behcode=1111

 i want in address bar show something like this

behtob.com/Store?Behcode=1111

page name without .aspx

is it possible?

thanks