Service pack updates will not overwrite paid licensing. Your paid licensing will continue to work and you will not be required to re-enter your purchased registration codes. Service pack updates do not include any changes that might "break" previously developed and/or deployed code.
To verify you are using the latest version of an Accusoft Development Component or Components, please refer to the currently released product build numbers at www.accusoft.com/latestbuilds.htm
If you require further assistance or have questions or comments, please see the section Getting Support for more detailed information.