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Microsoft Windows SharePoint Services allows you to help protect your users from uploading or downloading files that contain viruses. When you install an antivirus scanner that is compatible with Windows SharePoint Services, you can enable the antivirus protection feature for a server. When you enable the antivirus protection feature, files are checked for viruses when a user adds a document to a document library or list, or when a user views a document in a document library or list. If a virus is found, the scanner can attempt to clean the file, or if the file cannot be cleaned, can block the file from being added or viewed.
You enable and configure antivirus protection at the server level. When enabled, antivirus protection is available for all document libraries on all sites and subsites on the server, or for all servers in a server farm. You can use SharePoint Central Administration or the command-line tool to configure virus protection settings.
Note You must install antivirus software compatible with Windows SharePoint Services on any server computer running Windows SharePoint Services before you can enable virus protection in Windows SharePoint Services. In a server farm deployment, you must install antivirus software on every front-end Web server in the server farm. Consult your antivirus software vendor to find out whether they offer a virus scanner for use with Windows SharePoint Services and for information about installing the virus scanner. For a list of antivirus software vendors that support virus protection for Windows SharePoint Services, see the See Also section in this topic.