Hello, Olivier!

Are there any assemblyBinding elements in the
RTEFAXExpressCustomer.exe.config?

Consult the following article
http://msdn2.microsoft.com/en-us/library/yx7xezcf.aspx, particularly the
section about
"steps to resolve an assembly reference".

--
With best regards, Vadym Stetsiak.
Blog: http://vadmyst.blogspot.com

You wrote  on Tue, 11 Sep 2007 17:29:23 +0200:

OM> Hello,
OM> I have a .NET application that is called from within an installer
OM> custom  action.
OM> The custom action is written in c# and called from a web site setup
OM> project.
OM> The application is installed in the web site's bin directory.
OM> It depends on libraries that are installed in the GAC.

OM> The call to the application in the custom action is done through
OM> Process.Start (not using shell execute).
OM> Here is the fusion log :
OM> ________________________________________________

OM> Unhandled Exception: System.IO.FileNotFoundException: Could not load
OM> file or  assembly 'FaxBoxCustomer, Version=1.0.0.0, Culture=neutral,
OM> PublicKeyToken=cb1c7cff7286f087' or one of its dependencies. Le
OM> fichier  sp,cifi, est introuvable.
OM> File name: 'FaxBoxCustomer, Version=1.0.0.0, Culture=neutral,
OM> PublicKeyToken=cb1c7cff7286f087'
OM>    at RTEFAXExpressCustomer.Program.Main(String[] args)

OM> === Pre-bind state information ===
OM> LOG: User = RTENETWORK\olivier.matrot
OM> LOG: DisplayName = FaxBoxCustomer, Version=1.0.0.0, Culture=neutral,
OM> PublicKeyToken=cb1c7cff7286f087  (Fully-specified)
OM> LOG: Appbase = file:///C:/inetpub/wwwroot/NAWEB3/bin/
OM> LOG: Initial PrivatePath = NULL
OM> Calling assembly : RTEFAXExpressCustomer, Version=1.0.0.0,
OM> Culture=neutral,
OM> PublicKeyToken=cb1c7cff7286f087.
OM> ===
OM> LOG: This bind starts in default load context.
OM> LOG: Using application configuration file:
OM> C:\inetpub\wwwroot\NAWEB3\bin\RTEFAXExpressCustomer.exe.config
OM> LOG: Using machine configuration file from
OM> C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\config\machine.config.
OM> LOG: Post-policy reference: FaxBoxCustomer, Version=1.0.0.0,
OM> Culture=neutral, PublicKeyToken=cb1c7cff7286f087
OM> LOG: Attempting download of new URL
OM> file:///C:/inetpub/wwwroot/NAWEB3/bin/FaxBoxCustomer.DLL.
OM> LOG: Attempting download of new URL
OM> file:///C:/inetpub/wwwroot/NAWEB3/bin/FaxBoxCustomer/FaxBoxCustomer.
OM> DLL.
OM> LOG: Attempting download of new URL
OM> file:///C:/inetpub/wwwroot/NAWEB3/bin/FaxBoxCustomer.EXE.
OM> LOG: Attempting download of new URL
OM> file:///C:/inetpub/wwwroot/NAWEB3/bin/FaxBoxCustomer/FaxBoxCustomer.
OM> EXE.
OM> ___________________________________________________

OM> The problem is that 'FaxBoxCustomer' library  is located in the GAC,
OM> and  that the application is working fine when launched from the
OM> command line !
OM> In both case the user is the same.

OM> Previously the libraries were located alongside the application.

OM> TIA.

Assemblies aren't commited to the GAC during an MSI install until after your
custom actions run, so if you run code that has a dependency on a GAC custom
action it will fail to load it.