Activex codebase #Version issue

Hi,

I have created Activex control for FTPcontrol (upload and download the files). Now the next thing I need to implement is version control. i.e when we update Activex version on server the prompt should come with message "Updated Activex version "2.0.0.1" is available. I referred different forums but didn't find the exact solution. Reffered links are:

http://support.microsoft.com/kb/167597/en-us

http://stackoverflow.com/questions/16033802/how-to-roll-out-a-new-version-of-an-activex-control-written-in-vb6

http://forums.asp.net/t/1395876.aspx

http://social.msdn.microsoft.com/Forums/ie/en-US/73a4f5df-7a0e-4a56-993c-cbe39df60b62/difficulty-updating-activex-control-with-version-specified-in-codebase?forum=iewebdevelopment

the .inf file structure is:

[version] 

signature="$CHICAGO$" 

AdvancedINF=2.0

[FTPControl.dll]
clsid={873355E1-2D0D-476f-9BEF-C7E645024C32} 
FileVersion=32,0,40310,1



[Setup Hooks] 

install=install 

[install] 

run=msiexec.exe /package """%EXTRACT_DIR%\FTPControlsInstaller.msi""" /qn

I am updating the version of FTPControl.dll and in the codebase tag ' classid="clsid:873355E1-2D0D-476f-9BEF-C7E645024C32" codebase="../FTPControlsInstaller.cab#Version=32,0,40310,1" '

But the issue is that the prompt is coming in every page load.

I am unable to find which version it is comparing according to the referred psudo code. Please suggest any idea or solution if anybody have

Thanks,

Ajay Vishwakarma