Try going here:
At the bottom of the page there are the OFFLINE installers. Pick the one you need.
Make sure all browsers are closed after you download them
Let try that first please.
Thanks for your response.
That offline installer indeed elicited no such syntax error.
However this only partially solves my problem since the offline installer delivers the 18.00-version Flash Player, which isn't the newest 22.214.171.124 as of this moment.
It appears that the newest version can only be downloaded using the online installer - which would again cause the same syntax error.
Oh wow apparently I was looking at the wrong file as I was typing a reply to you a while ago. Thanks so much my friend - will stick to this offline installer trick from now on