# Clarion 11 call C# dll will show Exception screen

**URL:** <https://clarionhub.com/t/clarion-11-call-c-dll-will-show-exception-screen/6157>\
**Category:** questions\
**Tags:** interop, dotnet\
**Created:** [April 18, 2023, 3:00am UTC](https://clarionhub.com/t/clarion-11-call-c-dll-will-show-exception-screen/6157 "2023-04-18T03:00:33Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![MarkGoldberg](https://clarionhub.com/user_avatar/clarionhub.com/markgoldberg/32/1511_2.png) [@MarkGoldberg](https://clarionhub.com/u/MarkGoldberg)\
**Post date:** [April 19, 2023, 8:08pm UTC](https://clarionhub.com/t/clarion-11-call-c-dll-will-show-exception-screen/6157/5 "2023-04-19T20:08:42Z")

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We’d like to be able to help you  
But we need so much more information.  
Some of the first thoughts that come to mind are:

1. What does the call look like on the clarion side?
2. [How to improve the Call Stack when your program GPFs to show Procedure Names - ide / Tips - ClarionHub](https://clarionhub.com/t/how-to-improve-the-call-stack-when-your-program-gpfs-to-show-procedure-names/188)
3. Are there parameters
4. Is the call wrapped in a class  
a) if so are there LINK/MODULE attrubutes?  
i) do you have your pragma’s set  
ii) is the include for the class at a global (or module) scope ?
5. is the .NET program configured for x86 ?
6. when exactly does the crash occur?  
a) as you make the call  
b) upon return from the call

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