Nowadays there are all sorts of ways to catch errors in your Active Server Pages.
All code contains bugs.
Once you accept this fact, you can start hunting the bugs down, making sure the biggest and the baddest ones are not prevalent. Checking For Bugs One way to find out if you production machine has Active Server page bugs is to use Performance Monitor. All you have to do it turn the Performance Monitor on, add the Request Failed Total counter. Failed Total counter counts the number of Active Server page errors since the last time the server was started. From in the Object drop down list choose Active Server Pages .