Difference between http://+:8080/ and http://*:8080/
What are the differences between these two prefixes in terms of HttpListener or any other? http://+:8080/ http://*:8080/ Paulpro http://*:8080/ : Receive all HTTP requests on port 8080 that are not already being handled by some other HttpListener . http://+:8080/ : Receive all HTTP requests on port 8080 even if they're already handled by another HttpListener . CodeFox In addition to @Paulpro's great answer, the link posted by @rownage (see this answer ) provides some more information about the difference: Strong wildcard (Plus Sign +) When the host element of a UrlPrefix consists of a single