Modifying Windows NT's registry entry can change default scripting language for ASP at the server level. Changing the default at the server level affects all applications that run on the server.
To change the default to JScript, use Windows NT's registry editor to open the following key:
and then, change the DefaultScriptLanguage entry to JScript.
Rembmer that you must stop and restart IIS for the changes to take effect. Once the change takes affect, all scripts on the JScript engine will process all the scripts on the server unless otherwise specified at the page or function level.