Avoid the "optional resource assembly cannot be found"

[Erel]

The standard installation of .Net CF 2.0 doesn't include all error messages (to save space).
When such an error occurs you will see a message saying "An error message could not be displayed..."
If you want to see the error message install the attached cab file.
It is highly recommended to install it when you are developing a .Net CF 2.0 application.

[Edit]
The file could be downloaded here: error messages on device

[alfcen]

Thank you Erel!
I have a larger System_SR_ENU.cab of 332KB whilst yours is 93KB, believing that the larger one covers CF .NET 2x specific messages.