Displaying ad content from Respose.WriteFile()/ Response.ContentType | How would one display any add content from a "dynamic" aspx page? Currently I am working on using the System.Web.HttpResponse "Page.Response" to write a file that is stored on a web server to a web request.


This would allow people to hit a url to the type <http://www.foo.com?Image=test.jpg> and have the image display in their browser. So as you may know this revolves around the use of Response.ContentType.


By using 



```
Response.ContentType = "application/octet-stream";

```

I am able to display images of type gif/jpeg/png (all i have tested so far), bit trying to display .swf or .ico files gives me a nice little error.


using



```
Response.ContentType = "application/x-shockwave-flash";

```

I can get flash files to play, but then the images are messed.


So how do i **easily** choose the contenttype?