Corrigir o erro dos linked server:
alterar o servico SQLSERVER (services.msc) para correr como uma conta local (administrator caso exista, se der erro o utilizador logado). Restart dos servicos.


executar no sql server 1 vez:

EXEC sp_configure 'show advanced options', 1;
RECONFIGURE;
EXEC sp_configure 'xp_cmdshell', 1;
RECONFIGURE;


acesso ao integration services denied:
https://www.mssqltips.com/sqlservertip/6236/connecting-to-integration-services-access-is-denied-in-sql-server-2016-or-2017/


C:\Program Files (x86)\Microsoft SQL Server Management Studio 18\Common7\IDE\CommonExtensions\Microsoft\SSIS\150\MappingFiles\JetToSSIS.xml

<!-- 130 -->
<dtm:DataTypeMapping >
    <dtm:SourceDataType>
        <dtm:DataTypeName>130</dtm:DataTypeName>
    </dtm:SourceDataType>
    <dtm:DestinationDataType>
        <dtm:CharacterStringType>
            <dtm:DataTypeName>DT_WSTR</dtm:DataTypeName>
            <dtm:UseSourceLength/>
        </dtm:CharacterStringType>
    </dtm:DestinationDataType>
</dtm:DataTypeMapping>



C:\Program Files (x86)\Microsoft SQL Server Management Studio 18\Common7\IDE\CommonExtensions\Microsoft\SSIS\150\MappingFiles\MSSQLToSSIS10.XML

<!-- 130 -->
<dtm:DataTypeMapping >
    <dtm:SourceDataType>
        <dtm:DataTypeName>-1</dtm:DataTypeName>
    </dtm:SourceDataType>
    <dtm:DestinationDataType>
        <dtm:CharacterStringType>
            <dtm:DataTypeName>nvarchar</dtm:DataTypeName>
            <dtm:UseSourceLength/>
        </dtm:CharacterStringType>
    </dtm:DestinationDataType>
</dtm:DataTypeMapping>


C:\Program Files (x86)\Microsoft SQL Server Management Studio 18\Common7\IDE\CommonExtensions\Microsoft\SSIS\150\Binn\DtwTypeConversion.xml

  <!-- Convert from DT_WSTR-->
      <dtw:ConversionEntry>
        <dtw:SourceType>130</dtw:SourceType>
        <dtw:DestinationType TypeName="DT_NTEXT">
          <dtw:ConversionStep StepNum="1" ConvertToType="DT_NTEXT"/>
        </dtw:DestinationType>
      </dtw:ConversionEntry>