I have one computer where .NET exceptions cannot be caught in the debugger, and not constructed correctly. All system exceptions are reported as "System.Interop.SEHException - an external component has thrown an exception". Have not tried throwing exceptions derived from ApplicatinoException yet.
I reinstalled .NET and Visual Studio, all to no avail. Reinstalling this particular machine from scratch is not an option, unfortunately. For example, this code will produce this behavior: XslTranform x; ... x.Load ("badxslfile.xsl"); When run without the debugger, there is a stack printout at the console, and SEHException is on top of the stack. Debugger also reports it as SEHException. However, the exceptions are correctly caught by catch () { } blocks: try { x.Load ("badxslfile.xsl"); } catch (XsltCompileException ex) { . . . /* Breakpoint */ } When I examine the ex variable in debugger on the above breakpoint, the string returned from ex.Message is corrupt: (2, 4): [][][] where [] stands for a "hollow square" symbol, perhaps displayed by the debugger in lieu of unprintable characters. Any help out there? -kkm You can read messages from the DOTNET archive, unsubscribe from DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.