unusable TCS .zip

These files are pretty big, so if your file system is near full, the ZIP d/l could fail, but still exist.

Also, how are you doing the extract?
In recent versions of Windows, the File Manager can open and explore a .zip, just like any subdirectory. I commonly unpack an FM .zip by Ctrl-click drag from the top of the .zip to wherever I want the unpacked files to be. Haven't used Winzip in years.

My strong suspicion is, they weren't paying attention and sent me towards the TCS 2020 download instead of the TCS 2019 I'd asked for. For why? because when they promptly answered my e-mail, they sent me towards another URL where I clearly acquired the TCS 2019 .zip – different name, different size. Possible suspicion: does zipping files on a Windows 10 machine give results a Windows 7 machine can't unzip? Fingers crossed observation: FM 2019 now reinstalled and running!

I'd be tempted to try downloading it again using another browser - sometimes that seems to solve download problems.

Sound advice, and I had in fact contacted the e-mail address from the web page Adobe Support sent me. I've already had a reply, which provides a link to a different .zip file and some advice on which files to use once I've expanded it.

Just for fun, here are the detailed instructions from the first page: can't say I'm impressed!

"Please follow these instructions to install your product.
Step 1 – Download Adobe Technical Communication Suite
Step 2 – Use your Adobe ID to Sign in and start using Adobe Technical Communication Suite"

Hi,

I do not know this zip file. How large is it?

When you cannot unzip it, you should talk again to Adobe support.

Best regards

Winfried