Explanation: If "Access is denied" appears during a Foxhound installation or upgrade on Windows 7, you may need to start over and switch to using the hidden "Administrator" account:

1. Run the Foxhound "unsetup" process...

      start - All Programs - Foxhound1 - Tools - Unsetup Foxhound   

2. Open a "command prompt" window in "Administrator" mode...

      start - All Programs - Accessories - right mouse Command prompt - Run as Administrator   

3. Make the magic hidden Administrator account visible in Windows 7 by typing this command and pressing Enter...

      net user administrator /active:yes   

4. Log off your normal account, and login as Administrator.

5. Run the Foxhound installation again.

6. You probably should set a password for the Administrator account, or hide it again...

      net user administrator /active:no   

7. If you started the Foxhound database while logged in as Administrator, shut it down.

8. While still logged on Administrator, grant "Full Control" on the C:\ProgramData\RisingRoad folder to all "Users"...

      Windows Explorer 
        - click right mouse Properties on C:\ProgramData\RisingRoad
        - click Security
        - click Edit...
        - select "Users (..."
        - check Full Control - Allow
        - click Apply
        - click OK

The "Access is denied" message may also mean the Foxhound engine is already running as a service and it cannot be stopped by the post setup process. As a result, the Foxhound upgrade will not work properly:

• Try stopping the service and rerunning the upgrade, including the initial "unsetup" step: How do I install a new version of Foxhound?

• Here is an example of this and other related error messages produced by the post setup process when the Foxhound engine is running as a service:

  ...
  *** Starting the existing Foxhound database...
  19/07/2010 15:20:03.26 Foxhound 1.3736 *** ERRORLEVEL = 1
  ***  ...no, the existing Foxhound database did NOT start.
  *** ERRORLEVEL = 1
  07/19 15:20:02. Cannot access "C:\Documents and Settings\All Users\Application D
  ata\RisingRoad\Foxhound1\foxhound1.db": another process may be using the file
  ...
  *** Moving the old Foxhound database files...
  A subdirectory or file backup already exists.
  A subdirectory or file previous_build already exists.
  The process cannot access the file because it is being used by another process.
  ******************************************************************
  *** ERROR ********************************************************
  *** The $post_setup.bat file could not MOVE the old
  *** foxhound1.db file to the "previous_build" subfolder.
  *** Contact Breck.Carter@gmail.com
  ******************************************************************
  Press any key to continue processing...
  Press any key to continue . . .
  The process cannot access the file because it is being used by another process.
  ******************************************************************
  *** ERROR ********************************************************
  *** The $post_setup.bat file could not MOVE the old
  *** foxhound1.log file to the "previous_build" subfolder.
  *** Contact Breck.Carter@gmail.com
  ******************************************************************
  Press any key to continue processing...
  Press any key to continue . . .
  *** Moving the new Foxhound database files...
  Access is denied.
  ******************************************************************
  *** ERROR ********************************************************
  *** The $post_setup.bat file could not MOVE the new
  *** foxhound1.db file to the FOXHOUND1 folder.
  *** Contact Breck.Carter@gmail.com
  ******************************************************************
  Press any key to continue processing...
  Press any key to continue . . .
  Access is denied.
  ******************************************************************
  *** ERROR ********************************************************
  *** The $post_setup.bat file could not MOVE the new
  *** foxhound1.log file to the FOXHOUND1 folder.
  *** Contact Breck.Carter@gmail.com
  ******************************************************************
  Press any key to continue processing...
  Press any key to continue . . .
  *** Deleting the temporary setup files...
  *** Wrapping up...
  ******************************************************************
  *** ERROR ********************************************************
  dbspawn old_foxhound1 ERRORLEVEL = 1
  ...

See also...
How do I install a new version of Foxhound?