Access denied error when I use web services in InfoPath

Hi All,
When I use user profile service or any other web service in InfoPath and run it on my local server it works fine and when I deploy same form on production server where there is SharePoint farm it fails to run and give access denied error. I have used host header for SharePoint site and I refer that host header to open that site.
The solution for this problem is to disable the loopback check on each SharePoint server in farm.
To set the DisableLoopbackCheck registry key yourself, follow these steps:
Set the DisableStrictNameChecking registry entry to

1. For more information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base:
   (http://support.microsoft.com/kb/281308/ ) Connecting to SMB share on a Windows 2000-based computer or a Windows Server 2003-based computer may not work with an alias name
2. Click Start, click Run, type regedit, and then click OK.
3. In Registry Editor, locate and then click the following registry key:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
4. Right-click Lsa, point to New, and then click DWORD Value.
5. Type DisableLoopbackCheck, and then press ENTER.
6. Right-click DisableLoopbackCheck, and then click Modify.
7. In the Value data box, type 1, and then click OK.
8. Quit Registry Editor, and then restart your computer.
   And run IISRESET on each server
   Reference: http://support.microsoft.com/kb/896861