That's a Windows Installer limitation on upgrades. 

http://msdn.microsoft.com/en-us/library/aa369786(v=vs.85).aspx 

"Note  Windows Installer uses only the first three fields of the product 
version ......."

Phil Wilson 

-----Original Message-----
From: Sanjay Rao [mailto:s...@noida.interrasystems.com] 
Sent: Friday, January 14, 2011 1:33 PM
To: General discussion for Windows Installer XML toolset.
Subject: [WiX-users] Wix upgrade process does not consider 4th part of the 
version string

Hi,

I have an installer having 4-part version strings. Our installer stops 
installation if a newer version is already installed on the system. We 
often have alpha/beta releases of our product in which we do not change 
first 3 parts of the product. Suppose we have two releases of our product :
Release1 : 3.0.1.14500(Alpha)
Release2 : 3.0.1.14900(Beta)

Our users are able to install alpha release even if beta is already 
present on their systems.
I went through this article
http://wix.sourceforge.net/manual-wix3/major_upgrade.htm
see the paragraph having text "Windows Installer only uses the first 3 
parts of the............"

Is there any way in Wix to take care of 4th part of version string in 
upgrade process ?
OR
Do I need to dive into clumsy custom action thing to take care this ?

Regards,
Sanjay Rao

-- 
Sanjay Rao
Digital Media Group, Interra Systems
s...@interrasystems.com
Phone: +1-408-873-1212
http://www.interrasystems.com

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