After running WCF on my Vista laptop (IIS7) I needed to deploy the application on some Windows XP computers. Again some strange errors occurred: [code:html] Error Description: "This collection already contains an address with scheme http.  There can be at most one address per scheme in this collection. Parameter name: item" [/code] The problem is that WCF cannot handle more than one identity (host headers) per website. At first I configured IIS to have one HostHeader. That solution was just to dirty. So More Info »

While playing with IIS 7 I accidental destroyed my IIS (XML) settings file. To fix this problem I copied the .XML from a colleague PC to mine. After this my IIS started giving a strange error: HTTP Error 404.17 – Not Found – The requested content appears to be script and will not be served by the static file handler. After a quick search I found out that I copied the .XML from a 32 bit PC to my 64 bit Vista and More Info »