fAcceptAnyService : REG_DWORD
Default set to 0. If this value is set to 0 (FALSE) and the Windows CE-enabled client device specifies a service name, the client will not connect to any other service name. If the client device does not specify a service name and the PPPoE Active Discovery Offer (PADO) packet contains a service name, the client device will refuse to connect to this Access Concentrator.
不知道是否跟这个有关系。不过查了wince的代码又没有找到跟fAcceptAnyService相关的代码。