Document Library throwing System.Runtime.InteropServices.COMException error when trying to open files.

Recently I came across an Image Library on a SharePoint 2010 farm where the thumbnails were visible but opening the images threw a correlation ID. The error message behind the ID was a System.Runtime.InteropServices.COMException which is an ACL related issue. The library inherited permissions from its parent so to solve this issue I broke inheritance and re-established inheritance again. When I re-established inheritance the system refreshed the ACL from the parent and fixed the issue.

About the author

Hi! I'm Marcell Mikolcsó, SharePoint and Enterprise Administrator, System Architect.

Month List

Page List