Hi,
The ProxyPass directive maps remote servers to the URL space of the current Virtual Host, so that the content served by the other server becomes part of the domain of the current Virtual Host, which is not the case here.
Your Virtual Host does not want to know about the DocumentRoot folder in the server running IIS, therefore it throws a syntax error.
You can use mod_rewrite to solve your problem, see
[
httpd.apache.org],
and
[
httpd.apache.org],
especially the section about 'Move Homedirs to Different Webserver'.
You can test your configuration at any time by running the command 'httpd -t'. It should say 'Syntax OK'.
By the way, you have two domain names, not TLDs :-)
Regards,
toivo
Sydney, Australia