The IAS Jet Database Access service uses the Remote Authentication Dial-In User Service (RADIUS) protocol to provide authentication, authorization, and accounting services. It is only available in 64-bit versions of Windows. With Internet Authentication Services (IAS), you can centrally manage user authentication, authorization, and accounting. You can also use IAS to authenticate users against domain controllers that run Windows NT? 4.0, Windows 2000, or Windows Server 2003 operating systems. IAS works equally well in homogeneous and heterogeneous networks. Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\System Services!IAS Jet Database Access (2) REG: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iasjet!Start