http://developers.de/blogs/armin_kalajdzija/archive/2016/10/18/set-azure-webjob-to-run-in-64-bit-mode.aspxI just found out that my Azure Webjob was running 32-bit all the time without me even knowing it. As I tried to attach my debugger on the Webjob I got following error message: &quot;Unable to attach. The 64-bit version of the Visual Studio Remote DebuggerenCommunityServer 2008 SP1 (Build: 30619.63)http://developers.de/blogs/armin_kalajdzija/archive/2016/10/18/set-azure-webjob-to-run-in-64-bit-mode.aspx#1809287Tue, 24 Jan 2017 11:17:57 GMT7e491611-45ad-4dae-a68f-c4cb64439510:1809287sander<p>Edge case:</p> <p>- when using DocumentDb partitioning, 64bit is not supported in the documentdb client</p> <div style="clear:both;"></div><img src="http://developers.de/aggbug.aspx?PostID=1809287" width="1" height="1">http://developers.de/blogs/armin_kalajdzija/archive/2016/10/18/set-azure-webjob-to-run-in-64-bit-mode.aspx#1809288Mon, 12 Dec 2016 17:48:43 GMT7e491611-45ad-4dae-a68f-c4cb64439510:1809288Steve Cadwallader<p>Also, be sure to set this setting for both Debug and Release modes!</p> <div style="clear:both;"></div><img src="http://developers.de/aggbug.aspx?PostID=1809288" width="1" height="1">