OS/2 FAQ List: User's Edition (4 Apr 94)

(3.10) Extended Services

What is Extended Services?

Prior to Version 2.0, IBM offered two separate packages with each release 
of OS/2: Standard Edition and Extended Edition.  Extended Edition included 
extra, bundled software products: the Communications Manager (for 
communication with IBM mainframes, minicomputers, and other hosts), 
Database Manager (a full, network aware, relational database), and LAN 
Requester.

IBM has now unbundled the Extended Edition features, dropped LAN Requester 
from the package (now available separately, with IBM's LAN Server), 
updated it for OS/2 2.x, and renamed it Extended Services 1.0.  ES, by 
itself, no longer includes the base operating system as Extended Edition 
once did.

This new arrangement makes it easier to update the base operating system 
with CSDs [See (4.6) Corrective Service Diskettes].  And now ES 1.0 will 
run under OS/2 1.3 Standard Edition as well as OS/2 2.x.  Also, ES 1.0, 
like OS/2 2.x itself, is designed to operate on both IBM and non-IBM 
systems [See (2.1) Hardware Requirements].

While Extended Services will remain available, IBM has decided to further 
separate the ES components.  DB2/2, a full 32-bit relational database, is 
available separately as a replacement for ES's Database Manager. 
 Communications Manager/2 is now also available by itself.  With each 
component available "a la carte," you can configure your OS/2 system to 
your exact specifications (almost always at a lower cost), and you are 
free to substitute similar products from other vendors (so you aren't 
locked into IBM's offerings).

To install Extended Services 1.0 under OS/2 2.1, you must replace the 
ESSTART.CMD file on ES Diskette 1 with the ESSTART.BAK file found in the 
\OS2\INSTALL directory  Keep a backup of the old file.

Related information:

(1.2) Differences Between Versions 
(2.1) Hardware Requirements 
(3.8) Networking Products 
(4.6) Corrective Service Diskettes

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