MsiGetUserInfoW

function MsiGetUserInfoW(

  szProduct: LPCWSTR;

  lpUserNameBuf: LPWSTR;

  var pcchUserNameBuf: DWORD;

  lpOrgNameBuf: LPWSTR;

  var pcchOrgNameBuf: DWORD;

  lpSerialBuf: LPWSTR;

  var pcchSerialBuf: DWORD

):USERINFOSTATE;