How to Convert "File System" web site to "HTTP" web site in VS2005

Problem:
Need to convert "File System" web site to "HTTP" web site in Visual Studio 2005.

For sample reason to convert, see "Server-Side Include "Failed to map the path"" CSC - Technical Notes. 24 Feb. 2009 
http://csc-technicalnotes.blogspot.com/2008/12/server-side-include-virtual-failed-to.html.

Solution
1) Set up virtual folder in IIS for web site
- IIS/Right-click Default Web Site/New/Virtual Directory.../Click Next to continue
- Alias: --WEB SITE NAME--
- Directory: Select existing File System web site folder in solution

2) Set ASP.NET version for virtual folder just created
- IIS/Right-click NEW Web Site/Properties/ASP.NET tab
- ASP.NET version: 2.0.50727

3) Remove File System web site from solution
- Right-click File System web site in Solution Explorer
- Remove

4) Add HTTP web site to solution
- Solution Explorer/Right-click Solution/Add/Existing Web Site
- Add Existing Web Site Dialog/Click "Local IIS"
- Under "Local Internet Information Server", select virtual folder created above
- Open

5) Bind web site code to old VSS location
- VS2005/File/Source Control/Change Source Control
- Select HTTP web site from list
- Click "Bind" button
- Log into VSS if necessary
- VSS/Select project folder of old File System web site
- OK
- If Status = "Valid"
- OK
- Select "Allow these files to be replaced by their server versions"
- OK
- Done

- If Status = "Invalid",
- Cancel
- "Microsoft Visual Studio needs to reopen source control database connections for projects in the solution. Your source control provider may prompt for your credentials."
- OK

- NOTE: Performing 1 or more of the following tasks may enable the binding to be "Valid":
1: [This alone should work] Close VS and delete solution *.suo file.
2: Check one file from new web site into VSS. This will be created in a VSS default location.
3: Delete all files named "vssver.scc" in web site folders and sub-folders from Windows Explorer
- Retry steps under "Bind web site code to old VSS location"
- Delete project and file from VSS that was created during step "2:" above.
- This error may be thrown:

 Unexpected error encountered. It is recommended that you restart the application as soon as possible.

 Error: Unspecified error

 File: vsee\pkgs\vssprovider\abstractionlayerdispatcher.cpp

 Line number: 4720

 ASP.NET Visual Studio