Windows Forms user settings & save settings
These comments relate to Whidbey Beta 1.
Setting the SaveSettings property to true in the designer for a toolbar strip causes app.config to be rewritten with encoding Windows-1252 which seems to prevent the application from starting. You may see an error similar to the following:
Error while trying to run project: Unable to start debugging.
Unable to start program 'C:\yourprogram.exe'.
This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem.
Editing the app.config file to change the encoding back to UTF-8 may fix your problem.
In general, using C#, the support for user configuration settings appears to be very brittle in Beta 1.