To store the uploaded documents, Bulksign requires the configuration of a storage path. This path can be both local (example c:\Program Files\Bulksign\Storage) or a network path (\\DSF\BulksignStorage)
Q: What is the protocol used to access files over the network share ?
A : Protocol is SMB. The opened ports required for SMB are 445 and 137-139 (these are used for NetBios/Name resolution).
If the network share is only accessible to a certain user, Bulksign IIS websites and Bulksign Windows service need also to be changed so they will run under the user which has access to the network share.
Please see this section about how to configure Bulksign for this scenario