This small (971 KB) package "128Ato128B.exe" is a self extracting zipfile which upgrades 1.28a to 1.28b.
The "eaw.exe" is OAW128 ready in the "E 1.28b release" folder inside the "OAW128" folder.
If you are not using OAW128 then copy the "eaw.exe" into your EAW folder.
Two CDF files (FLT and DATA) have been repaced with improved versions.
There is a third and new CDF which this exe needs named "CDF.CDF".
This one contains the default "CDF.set" file which this exe reads for the CDF names to use.
It will use a "CDF.set" file in the EAW directory in preference if one is present.
This enables modders to release complete packs in custom made CDF files, with an accompanying "CDF.set" file.
To upgrade you first need to upgrade to 1.28a- check the 1.28a release post if you need to do this.
Then run this extractor "128Ato128B.exe" in your 1.28a directory.

Jel
4th July 2009