how to find out if an exception's message will be localized...

Something a little different to figure out today.

I have a piece of code in a try catch block that swallows a COMException.  However, based on the message of the exception I'll want to rethrow it and add the original exception as an inner exception.  During my code review yesterday, the question of localization came up...and honestly, I don't know if a COMException's message is localized or not on OS's for different languages (other than English).

Anyone have a suggestion where to look for information about this?  I'm not having much luck on MSDN, it doesn't really give much in the way of localization information.