Navigate to the Windows Control Panel.
Double click the Java Plug-in icon (Java 2 Runtime Environment).
Click the Cache tab.
Check the Enable Caching checkbox.
After downloading, a user is not aware of the S/MIME applet. It appears that signing, encrypting, or decrypting a message is done by Communications Express Mail. Unless an error message pops up, the user also is unaware of the processes to verify a private or public key. Refer to 24.9 Verifying Private and Public Keys for more information.