.net - What exception to use as base for fatal runtime exceptions in c#? -

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i working on windows forms project , class library project in visual studio 2012.

if have 1 or more fatal runtime exceptions .net exception use base? know applicationexception used non-fatal application exception. dont see 1 .net recommends fatal application exception.

or define own base exception fatal runtime exceptions? if yes .net exception derive it?

thanks


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