C++ Trusted publisher certificate store

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C++

certificate

i want to intall a .cer file in both the Trusted publisher and the Trusted Root Certification Authorities certificate store.i found some material in msdn. i call "CertOpenStore" to open a specific store location and call "CertAddCertificateContextToStore" to install .cer file into store.to intall into the Trusted Root Certification Authorities certificate store,it works well.but it always intall .cer file into Trusted Enterprise store...my code is CertOpenStore(CERT_STORE_PROV_SYSTEM,0,0,CERT_STORE_OPEN_EXISTING_FLAG | CERT_SYSTEM_STORE_LOCAL_MACHINE, L"trust");
help me plz,thx advanced.