The app Multicert Remote Sign available for Microsoft Windows allows you to register your remote certificates on your computer.
To do so please follow these steps:
- Download the app Multicert Remote Sign available for Windows 8.1 or higher:
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- 32bits - MulticertRemoteSign-1.1.1-win32.zip
- 64bits - multicertremotesign-111-x64.zip
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- Unzip the file with password provided
- Run the installation file with administrator permissions
- Run the aplication and accept the Terms and Conditions (Aceito os termos do Contrato de Licença) to continue
and click on the Instalar (Install) button 
5. Check the option Start the Multicert Remote Sign (Iniciar Gestor de Certificados Remotos) and click Finish (Concluir)
Next you need to Register the Certificates see how in here
Proxy configurations needed.
If you are using the Adobe Reader to sign please deactivate the Sandbox mode