# C# wrapper demo client authorization callback not being called

**URL:** <https://devforum.zoom.us/t/c-wrapper-demo-client-authorization-callback-not-being-called/49983>\
**Category:** Windows\
**Created:** [May 10, 2021, 9:12pm UTC](https://devforum.zoom.us/t/c-wrapper-demo-client-authorization-callback-not-being-called/49983 "2021-05-10T21:12:22Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![juanricos](https://avatars.discourse-cdn.com/v4/letter/j/f14d63/32.png) [@juanricos](https://devforum.zoom.us/u/juanricos)\
**Post date:** [May 12, 2021, 11:48pm UTC](https://devforum.zoom.us/t/c-wrapper-demo-client-authorization-callback-not-being-called/49983/6 "2021-05-12T23:48:52Z")

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Thank you for the reply.

Originally, I did not do that folder rearranging because of what I read here: [Windows SDK Demo dosn't work - #4 by Michael\_Condon](https://devforum.zoom.us/t/windows-sdk-demo-dosnt-work/47617/4)

Michael\_Condon writes " No need to move files over from the C++ SDK."

But I did try to follow the instructions today and it just leads to numerous errors when building the project. So it does seem that those instructions are indeed outdated.

With the project as downloaded, it builds and runs fine, just no OnAuthenticationReturn callback.

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