A certificate is a confirmation of your identity and contains information used to protect data or to establish secure network connections. A certificate store is the system area where certificates are kept.
The Project painter lets you sign each application file that you deploy with a certificate that you select from your desktop certificate store. You can also sign each CAB file that you deploy to a Smartphone platform from the Project painter. Signing ensures that the application and CAB files are secure.
For the digital signing process, PocketBuilder uses an internal facility. However, for manually signing your files, such as after using a batch file to create a CAB file, you can use the Code Signing Wizard on the Tool tab of the New dialog box in PocketBuilder.