ASP Best Practices

Using Application Scope for Objects

Information stored in variables with application-wide scope is in memory and is cached for access by any page in the application. Give application scope to variables used often within an application, if the values do not change frequently.

Whatever the potential benefits, use caution in deciding whether or not to give application scope to an object. It can potentially affect performance and decrease reliability (your application could stop responding). To get the best performance using objects with application scope, set threading at BOTH.