Hello,
this is the exact cause for the client code removal:

The V5.4 Windows client packages were removed from the FTP server due to
two Windows Include/Exclude issues:

APAR IC51756 - the Preferences Editor can reverse the order of the
Include/Exclude list
APAR IC51657 - the setup wizard can remove the Include/Exclude list.

These issues affect only the Windows 5.4 clients. The Windows packages
will be replaced with a superceding interim fix when the APARs are fixed.

Bye
  Rainer Tammer