Supercharged IIS 5.1
We recently make a move from linux (ubuntu) server to a windows server (XP Pro) just so that we can run the new Fogbugz 6, which is only available on windows for the time being. I just can't wait for the unix/php version which seems to be taking forever.
The Fogbugz move from linux was painful and took me almost the whole day, but that's another story. Everything seems to be running smoothly when I realize that loading the site from home seems a little slower. Naturally, the finger pointing would start at streamyx, but pointing fingers won't solve anything. My second instinct was to find some caching, accelerator or compression software to speed things up. I always rely on APC cache for PHP/Apache server, but ASP?. A few more googling, it seems that page compression in IIS5 is either not working well, or simply doesn't exist.
Then, I found this, IISExpress. A page compression for IIS. It actually sit in between your IIS and the public port, intercepting all calls, and compressing the output. Installation was fast and easy and page load time went down considerable. No downside, just performance, performance, and more performance! Compression ratio hover around 87% which is great.
So, if some reason you are still stuct at IIS5, give this app a go.