AddCredentials

function AddCredentials(

  hCredentials: PCredHandle;

  pszPrincipal: PSecChar;

  pszPackage: PSecChar;

  fCredentialUse: Cardinal;

  pAuthData: Pointer;

  pGetKeyFn: SEC_GET_KEY_FN;

  pvGetKeyArgument: Pointer;

  ptsExpiry: PTimeStamp

):SECURITY_STATUS;