StoreFront 5.0 and 2000 use the Contents property of ASP Application object for certain tasks. The Contents property of the Application object was not supported in earlier versions of the ASP engine and some servers may still be running older versions of the asp.dll. To determine if you have the correct version of the ASP.dll, go to the Start menu and select Find | Files or Folders. Search the entire hard drive for a file called asp.dll. Once the file has been located, right-click it and select Properties, then click on the Version tab.
You must have an ASP.dll with a version of 4.0 or greater to support the Application.Contents property. In some cases, users will find more than one version of the asp.dll file. In this case there may be 1.x versions and 4.x versions both. If both files are present and the error is occurring, the server is most likely loading the older version. Renaming the older version will usually force the system to load the newer version. To do this, reboot the machine and stop the web server. Find the older asp.dll and rename it to asp.old, leaving the 4.x version correctly named as asp.dll. Restart the server. This should force the server to load the new dll.
If you do not find the newer asp.dll version 4.x on the system, you will need to upgrade the server resources. To get the latest version of the asp.dll download and install the NT Option Pack 4. This installation can be downloaded from: http://www.microsoft.com/ntserver/nts/downloads/recommended/NT4OptPk/default .asp
This upgrade is available for Win 95 and NT systems. Win 98 users should install PWS 4.0 from the Windows 98 CD.