Hello,
You don't need to reinstall AE server if WCC server is installed in a separate machine.
EEM and WCC are in different DVD's. If you want to install them in the same machine , you need to run the installation
from 2 separate DVD's. (EEM from CA COMMON COMPONENTS DVD and WCC from CA WORKLOAD CONTROL CENTER)
However to upgrade to the latest version of WAAE ,WCC,EEM you can download the following DVD's
from https://support.ca.com/us/download-center.html?r=1&r=1&r=1
1) On LINUX/UNIX
CA WORKLOAD CONTROL CENTER FOR LINUX R11.4 SP6 DVD MEDIADVDWCCLN114S6E.iso
CA COMMON COMPONENTS R11.3.6 SP7 FOR UNIX/LINUX DVD MEDIADVDCCUNLX1136S7E.iso
CA WORKLOAD AUTOMATION AE R11.3.6 SP7 FOR UNIX/LINUX DVD - MEDIA
DVDUNLNX1136S72E.iso
2) on WINDOWS:
CA WORKLOAD AUTOMATION AE R11.3.6 SP7 FOR WINDOWS DVD MEDIA
DVDWIND1136S7E.iso
CA COMMON COMPONENTS R11.3.6 SP7 FOR WINDOWS DVD MEDIADVDCCWIND1136S7E.iso
CA WORKLOAD CONTROL CENTER FOR WINDOWS R11.4 SP6 DVD MEDIADVDWCCWIN114S6E.iso
I hope this response suits your need,
Thanks and warm regards,
Faouzia