如下是源码，其实在98上只用最后一句ExitWindowEx即可，前面是为了取得权限.
TOKEN_PRIVILEGES tkp,tkpNewButIgnored;
HANDLE hdlTokenHandle;
LUID tmpLuid;
BOOL rc;
DWORD lBufferNeeded;
HANDLE hdlProcessHandle = GetCurrentProcess();
rc = ::OpenProcessToken(hdlProcessHandle,TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,
&hdlTokenHandle);
rc = LookupPrivilegeValue("","SeShutdownPrivilege", &tmpLuid);
tkp.PrivilegeCount = 1; // One privilege to set
tkp.Privileges[0].Luid = tmpLuid;
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
rc = ::AdjustTokenPrivileges(hdlTokenHandle,
FALSE,
&tkp,
sizeof(tkpNewButIgnored),
&tkpNewButIgnored,
&lBufferNeeded);
ExitWindowsEx(EWX_REBOOT,0);
