• QODBC, Quickbooks, Coldfusion, and SQL Server are installed on the same Windows 2003 Server, 64-bit Edition
  
• I followed directions to set up the Web Server Edition using DCOM, found here: http://www.qodbc.com/qodbcweb.htm
• The "Test Connection to Quickbooks" button as well as the VB test are functioning properly.
• I attempted to use the Automatic DCOM Configuration tool, and nothing happened.  No error, no results.  The Command Prompt window appears for a fraction of a second, then disappears.  Feeling optimistic, I ran the included VBS script, which also didn't work. (By the way you may want to update that script to accomodate searching a 64-bit registry and its Wow6432Node subtree - I got an error when the script went searching for the install directory.  After modifying the script to find the key, I get an error saying it can't create "DCOMPerm.")
• Since the automated tool failed I followed manual config instructions (http://www.qodbc.com/QODBCWebManualDCOMXPPro.htm) and have verified that the settings reflect those found in the linked document.
• I followed instructions to use SQL Server Management Studio in tests (http://www.qodbc.com/qodbcsqlserver.htm) as well as configure our Coldfusion Server (http://www.qodbc.com/QODBCWebColdFusion.htm) and received the same error in each of these clients. 

Try looking at: How do I manually setup the QODBC DCOM Servers on Windows XP Pro and Windows 2003 Server? and Does QODBC work with Coldfusion? 

Some of the information on the USA website for QODBC: http://www.QODBC.com is out of date, and while I have updated the information on this forum, we currently don't support 64 bit environments.

Did you reboot the server? Does auto-login mode work? (see How do I setup QODBC to auto-login into QuickBooks and start it if it's not running? )

I suggest you first try to get a simple IIS connection working first as per:  How can I see QuickBooks data in a Internet Explorer Browser using Windows XP?