Passing variables via URL to modify WebHelp content

I generate WebHelp for a product that is released under two different names. That is same product & functionality but different branding.

Instead of generating two separate versions of the help for each product, my boss would like to release one version of the help and have the applications update the product name.

The idea is to insert variable code for the product name and then change it on the fly by "passing a variable" via URL when a topic is called by the application - which is web-based.

Is this possible with WebHelp?

I'm not sure this is doable, but wanted to see if anyone here has seen something like this done.