This is a continuation of an issue I was having here:

 http://forums.asp.net/t/1412164.aspx

Using ASP.Net 2.0,I found when I specifically set the size of the image in  third party (YDreams) image map it will display the image when I run the website under Visual Studio 2005. However, when I attempt to run the application under IIS 6.0. It exhibits the same behavior as before. Large images will not be rendered.

 I found that if I delete the ASP.Net temp files for this application, I will be able to see this large image, one time, but after a few calls it the application goes back to not showing any large image. I suspect if I keep going, it would not show any images at all.

So, something is going on with the ASP.Net Temporary files. Is there a setting I need to address, either in ASP.Net or IIS? Do I need to dispose of the image, or some other, object when the page is loaded? Is there a patch of some kind available? Should I write a function that will delete the temp files and repost if the image file gets too large? Am I missing something ?