Since this seems to be a specific VSTO installer problem you'd probably be
best off posting your question on the managed VSTO forum at
http://forums.microsoft.com/MSDN/Sho...ID=16&SiteID=1

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"JK" wrote in message
...
Hi
I created MSI for my Outlook 2007 AddIn in VS2008, defined Custom Action
to
load VSTOInstaller.exe. When I run MSI on user's machine, Office
Customization Installer pops up and then Error occurs. "AddIn already
installed, remove Add In from Add Remove Programs..etc" I checked in Add
Remove Programs I do not find any AddIn installed. Now when I double click
my
.vsto file directly it opens up Office Customization Installer and AddIn
is
installed successfully. I do not know why AddIn is not being installed
from
MSI ?

P.S All Pre requisites at user machine are already installed.
Please help me out!!
JK