IIS Debugging ASP program, you may have to use IIS, do not know if you have encountered this situation?
When you start IIS, you cannot eject the IIS interface, but when you shut down or log off, the inexplicable save as "*.msc" File dialog box pops up, and when you start IIS several times, there will be several such dialogs (my system is windows2000+iis5.0).
I have encountered this situation many times, because cannot find the reason, had to reload the system. Recently encountered this situation, I doubt is because of what software caused the conflict, so I decided to uninstall the machine software in turn (fortunately, the machine is not a lot of software installed). I've found that when you uninstall Norton Server version 8.1 and Norton Personal Firewall 5.0, IIS is working properly. Even more strangely, I put Norton on, and IIS can still use it.
Therefore, I think that Norton may in some cases cause IIS to not work properly, but this phenomenon is more subtle. Because, not a single installation of Norton IIS can not be used, but not necessarily in that case problems. This is my machine, Norton has been installed for several days, and IIS has been running normally, but one day IIS is suddenly unavailable.
If you have encountered this situation, I hope this article can give you some reference.