Yes, S-Drive supports attachments for all standard and custom objects. For example, if you want to use S-Drive for software delivery, you can create a custom object for software downloads. You can create S-Drive attachments to store installation files for customers and store these attachments under this custom object. You can also create as many folders as you need to organize these installation files, documents etc. See our Setup S-Drive for Custom Objects demo for detailed instructions about working with S-Drive and custom objects.