If a USB flash drive of the customer should be used, there is the same workflow with product activation using EasyGo. All activation options (online, e-mail, fax, phone) are supported. You just have to provide an option that the user can copy the generic license file to the USB flash drive. This could be done e.g. during the installation.
You define with the Serial Number , on how many PCs the USB flash drive can be attached.
The USB flash drive protection uses the installation code 11. For activation by e-mail, fax, phone nothing specific has to be considered. See chapter: Unlock Key. If the installation code 11 is empty, then the USB flash drive does not support copy protection.
For online activation we recommend using an own project name (e.g. product-usb) because the activation server has to use installation code 11 as the main criteria. If the USB flash drive does not support copy protection, then the license is automatically bound to the PC which makes the activation.