I edited the question to be a little bit more generic, and I opened it for you. In this case I think it's a bit of a border-line situation. It's pretty specific to your corporate firewall settings (and corporate policies, too), but the general advice of "how to deal with web installers when behind a proxy" could certainly be useful for other people.
On an ...
There is some overlap depending on whether the question involves local programs or not.
If the question is about a local application (e.g. Photoshop CC), then it would be on-topic.
If it were about the interaction between a local application and the online service (e.g. uploading from Photoshop CC), it would be on-topic.
If the question were about the use ...
This question is unlikely to help any future visitors; it is only
relevant to a small geographic area, a specific moment in time, or an
extraordinarily narrow situation that is not generally applicable to
the worldwide audience of the internet. For help making this question
more broadly applicable.
Why the "an extraordinarily narrow situation that ...
As an irregular SuperUser I thought I'd chime in to say that while it might be on topic here that you're more likely to find a audience who can answer the question in a more specialised stack.
I suggest having a meta discussion with GraphicDesign since they field a lot of usage questions on the Adobe graphics products and Audio-Video Production for Premiere ...