Have you get a notifications when ever you experience an error on your script. Especially when you getthe error message:
An error occurred on the server when processing the URL. Please contact the system administrator
If you are developing ASP Classic in IIS 7.+ make sure that your ASP Classic show their error message and not the message above. This will help you in your development especially when an error occurs. This same situation happen to us when developing the said Scripting Language and IIS 7.+ default its error showing message to false. To modify this just follow this steps:
Go to your IIS Manger.
Select the ASP Icon.
Under the Compilation Table open the Debugging Properties