# Finding .NET assemblies in a directory

**URL:** https://www.finalbuilder.com/forums/t/finding-net-assemblies-in-a-directory/1151
**Category:** Discussion
**Created:** [March 18, 2009, 10:24am UTC](https://www.finalbuilder.com/forums/t/finding-net-assemblies-in-a-directory/1151 "2009-03-18T10:24:54Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![deleted\_user](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/deleted_user/32/937_2.png) [@deleted\_user](https://www.finalbuilder.com/forums/u/deleted_user)
#### Post date: [March 18, 2009, 10:24am UTC](https://www.finalbuilder.com/forums/t/finding-net-assemblies-in-a-directory/1151/1 "2009-03-18T10:24:54Z")

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Hello,

I am currently using FinalBuilder 6 and I am doing many great stuff with it.  
I was wondering...

Is there a way to test .exe and .dll with FinalBuilder to know if they use the CLR (they are .NET Assemblies) ?

Thank you very much.

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### Author: ![paulsamways](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/p/e8c25b/32.png) [@paulsamways](https://www.finalbuilder.com/forums/u/paulsamways)
#### Post date: [March 18, 2009, 11:32am UTC](https://www.finalbuilder.com/forums/t/finding-net-assemblies-in-a-directory/1151/2 "2009-03-18T11:32:46Z")

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Hi Luc,   
  
 We don’t have an in-built action to detect whether a file is an assembly or not but you should be able to write a small .Net custom action which does something like what is mentioned in this blog post: [http://blog.lozanotek.com/archive/2004/11/15/159.aspx](http://blog.lozanotek.com/archive/2004/11/15/159.aspx).   
  
 Regards,   
 Paul.

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### Author: ![Vincent](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/vincent/32/938_2.png) [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [March 19, 2009, 2:45am UTC](https://www.finalbuilder.com/forums/t/finding-net-assemblies-in-a-directory/1151/3 "2009-03-19T02:45:37Z")

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Hi Luc   
  
 Another simple way to detect it is to run the CorFlags utilitly (part of the .net sdk) against the dll - if it’s and assembly then it will return 0 as it’s exit code, otherwise 1.   
  
 HTH

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### Author: ![deleted\_user](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/deleted_user/32/937_2.png) [@deleted\_user](https://www.finalbuilder.com/forums/u/deleted_user)
#### Post date: [March 19, 2009, 5:57am UTC](https://www.finalbuilder.com/forums/t/finding-net-assemblies-in-a-directory/1151/4 "2009-03-19T05:57:32Z")

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Thank you very much Vincent :)  
It worked perfectly