> # Using Multiple Versions of SequeLink®

> You may want to install multiple versions of SequeLink side-by-side so that you can implement the migration to SequeLink 6.0 without any interruption in your everyday use of an earlier version of SequeLink 5.x. Then, when you have completed the configuration and testing of SequeLink 6.0, you can delete the earlier version of SequeLink from your clients and servers.

> NOTE: On Windows, you cannot install a 32-bit and a 64-bit version of SequeLink side-by-side.

> You must use the appropriate version of the SequeLink Manager to administer the SequeLink services. That is, you can use only the SequeLink Manager 6.0 to configure, manage, and monitor SequeLink 6.0 services.

> IMPORTANT: You must configure a different TCP/IP port for each version of SequeLink that you install. You must also configure a different port for the Agent and one for each data access service that you want to duplicate.