Closed Issue: AjaxControlToolkit assembly not displayed in Add Reference dialog (.NET tab) [16929]

I have successfully added the AjaxControlToolkit.dll to GAC ( version I have downloaded is 1.0.20229.20821). I am trying to add reference to this assembly using .NET tab of Add reference dialog box. But AjaxControlToolkit assembly is not apprearing there ( is not getting displayed). Is this an issue or am I missing something? Please let me know. I am trying to build a composite control in our framework's webcontrols library which is using one of AjaxControlToolkit extender control. Idea is do install AjaxControlToolkit.dll into the GAC along with our framework webcontrol dll onto the developers machine.

Waiting for your response.
Thanks
Milind
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please create a new inquiry.