Follow these steps whenever it is necessary to authenticate with QES in the internet page of Commercial Register:
1. Click "Library" and select the following file name and path in Windows XP/Vista/7: "C: Windows System32 acospkcs11.dll".
2. Wait for the system to read the certificates in your eSign Token and select the certificate.
3. Enter your PIN code eSign Token.
4. Then click Sign to complete authentication.