When you install the Enterprise Vault OWA 2003 extensions, the installation modifies some of the files that are installed by Exchange Server 2003. If Microsoft issues a hotfix for Exchange Server 2003, the OWA 2003 Control Files Tool lets you apply the same Enterprise Vault changes to the new, hotfix files.

By default, OWA 2003 Control Files Tool makes changes to the Exchange Server files that have the highest version number, but you can specify a specific Exchange Server hotfix or service pack version if required.

OWA 2003 Control Files Tool works with Exchange Server hotfixes that are supported by Enterprise Vault. If Microsoft issues a new hotfix, you need to obtain a new version of OWA 2003 Control Files Tool in order to modify the hotfix files.

OWA 2003 Control Files Tool is supplied as a Windows script file, EVControlFilesTool.wsf.