Load file in Asp.Net 2.0

[shapper]

Hello,

I am creating a custom control where a javascript file is added to a
page:

ClientScript.RegisterClientScriptInclude(Me.GetType(), Me.Name, Me.Url)
(*)

Everything works fine when I use in my page:
MyCustomControl.Url = "Code/MyFile.js"

However the following does not work:
MyCustomControl.Url = "~/Code/MyFile.js"

What should I change in my custom control code (*) so that "~/..."
would work?

Thanks,
Miguel