I recently ran into an issue where IIS was returning a 404.13 error when users were trying to upload files. I did a bit of looking and found that files uploaded fine when they were lower than 30MB. But once we tried to upload anything larger, IIS would return the 404. With a bit of digging we found that there is a maxAllowedContentLength setting in IIS 7.5. Who knew? Well, I guess I should have. In IIS 7.5, the default limit for this setting is 28.6 MB. At any rate, here is how you can … [Read more...]