The following file(s) have been blocked by the administrator

[Breck]

I have a single server implementation of:
1: Windows 2003 server
2: SharePoint Portal server 2003
3: SharePoint services v2.0
4: Project server 2003
5: All relevant service packs have been applied.

I have installed as per documentation and the as per
Microsoft knowledge base article
840701.
1: Portal server has been installed in its on virtual
site. (not the default web site)
2: Project server has been installed in its on virtual
site. (not the default web site)

Issue:
When you access the Project server web admin page the
following error is received.
The following file(s) have been blocked by the
administrator: /ProjectServer/Admin/Admin.asp

Fixes implemented
1: In SharePoint services removed the .asp from the
blocked files. Then we receive http error: 404 FILE NOT
FOUND.
2: On the PROJECTSERVER and MDAC virtual directory
selected basic authentication In directory security.

Any ideas would be appreciated.