The RKU (Remote Key Update) file basically contains commands and Key Properties. The RKUB system uses the RKU file to remotely update Key Properties for the protected application on the end-user site. The name of the RKU file can be any valid file name, but it must match the file name that you specify when you enable the RKUB option on the protected program. The RKU file must be encoded before distributing to the end-user. This can be done by using LicenseKey Manager or Activation Manager. Once receiving the RKU file, the end-user must place it in the same directory as the protected program.
To ensure security, copies of Key Properties in the RKU file are required to be encrypted in the form of Master ID and Master License. This can be done by using LicenseKey Manager.
1. Run LicenseKey Manager.
2. From the Tools menu, select Generate Master ID. The Generate Master ID dialog box appears.
3. Click the Generate button. A Master ID appears in the field. (If you want a Master ID for Shareware, select the Shareware Registration ID checkbox before generating the Master ID. If you want a Master ID for Network Key, select the Network Key checkbox before generating the Master ID.)
4. Copy the Master ID. Then, go to the Key Properties pane and paste the Master ID into the Registration ID field.
5. Specify Key Properties for the protected application as you wish.
6. Click the Generate button. The Master License appears in the License Key field.