ASP Best Practices
Paths, Using MapPath
Consider using the MapPath method instead of literal paths in ASP applications. The ASP Server.MapPath method allows you to physically relocate an ASP application without recoding scripts. This saves program modification and maintenance effort.
Performance is affected slightly, because every time you use MapPath in a script, IIS must retrieve the current server path. Consider placing the result of the method call in an application variable in order to avoid retrieving the server path.