原因是安全设置,在代码中增加如下代码解决: HRESULT hr = CoInitializeSecurity(NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_NONE, RPC_C_IMP_LEVEL_IDENTIFY, NULL, EOAC_NONE, NULL); if (FAILED(hr)) { TRACE(_T("CoInitializeSecurity failed, %lx\n"), hr); }