Debugging an VSTO and InfoPath 2003 Solution from .Net 1.1

To get the InfoPath to default back to .NET 1.1, you need to update or create a file named INFOPATH.EXE.CONFIG, add it to the same directory as your infopath.exe and add the following:

<?xml version ="1.0" >

<configuration>

<startup>

<requiredRuntime version="v1.1.4322"/>

</startup>

</configuration>

Apparently this goes for any old .NET applications.

Please copy the created file “infopath.exe.config” to your Office11 Folder

(eg: C:\Program Files\Microsoft Office\OFFICE11)

This will force InfoPath.exe to be run in the context of .Net 1.1 and not .Net 2.0