# Understanding User and Kernel Mode

**URL:** <https://discourse.codinghorror.com/t/understanding-user-and-kernel-mode/405>\
**Category:** blog\
**Created:** [January 3, 2008, 12:00am UTC](https://discourse.codinghorror.com/t/understanding-user-and-kernel-mode/405 "2008-01-03T00:00:00Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![Rik\_Hemsley](https://discourse-cdn.codinghorror.com/letter_avatar_proxy/v2/letter/r/94ad74/32.png) [@Rik\_Hemsley](https://discourse.codinghorror.com/u/Rik_Hemsley)\
**Post date:** [January 4, 2008, 12:00am UTC](https://discourse.codinghorror.com/t/understanding-user-and-kernel-mode/405/11 "2008-01-04T00:00:00Z")

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So… you think that exceptions in .NET involve the CPU executing in kernel mode? WTF?

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