COM settings in OPC Classic client components

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CoInitializeSecurity parameters:

  • Without TurnOffCallSecurity: dwAuthnLevel = RPC_C_AUTHN_LEVEL_CONNECT (2), dwImpLevel = RPC_C_IMP_LEVEL_IMPERSONATE (3), pSecDesc = <by CSecurityDescriptor::InitializeFromThreadToken()>
  • With TurnOffCallSecurity: dwAuthnLevel = RPC_C_AUTHN_LEVEL_NONE (1), dwImpLevel = RPC_C_IMP_LEVEL_IMPERSONATE (3), pSecDesc = NULL
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