Hi, By default, Some file types are blocked. As we can allow those file types at Web application level, is it possible to allow the file types at site collection level? Thanks, Akilaskk

Akilaskk -- It is not possible, with SharePoint 2007 out of the box, to block file types differently between site collections within a web application, the web application level is the most granular you can go. I'm thinking that it could be done with some custom development, probably by creating an event receiver that would fire each time a file is uploaded to a site collection and check its type against a list within the site collection, but I'm not much of a developer so I don't know for sure on that. But the most granular you're going to be able to get without custom coding is going to be at the web application level. JohnMCTS: WSS v3, MOSS 2007, and SCOM 2007 Now Available on Amazon - The SharePoint 2007 Disaster Recovery Guide. Coming Soon - The SharePoint 2010 Disaster Recovery Guide. My blog: My Central Admin.