Digital Light & Color

I have downloaded the zip file, but there is nothing inside.

Sorry, should be OK now.

http://www.dl-c.com/Documents/PW 8.0.232.zip
Still empty, unless it gets lost on the way,

You probably need to click the Reload This Page button in your browser -- otherwise it is seeing a cached, out-of-date copy.

The exe cannot be run. It says pwzlib64.dll cannot be found.
However, this file is present in c:\Program Files\Digital Light & Color\Picture Window Pro 8\

Sorry for omitting the explanation -- it is a replacement for the for the file of the same name in your normal PWP installation. Rename the old one and copy the new one to the folder and it should work OK. For details, see the Downloads page which offers this fast update option for cases where the help file and/or bitmaps have not changed since the previous release.

Well, I might have known without explanation seeing it was an exe file.

I went through the scenarios with the new exe file and everythings seems to work as it should.

Now, shall I keep the new exe file for further work, or shall I switch back to the original one and wait for a new official realease?

You can continue to use the new one until I issue the official release later today or in a few days.