How can I get IE7 to see an HTC file in the same directory as my CSS?

The web design company I work for has a development side, and a published side for their client sites. For dev sites, the CSS is stored in a directory such as /software-1.5/templates/099/themes/theme-name/theme.css with PIE.htc stored in the same directory. The index page (and all other pages) are stored in the /software-1.5/ directory. However, once the site is published, the templates/099/... part will change to something else.

When I use behav开发者_StackOverflow中文版ior: url('PIE.htc') in my theme.css file, IE7 apparently tries to find the HTC file in the base directory, and not the CSS directory. How can I make IE7 look for the PIE.htc file in the same directory as the CSS?

Maybe it does help if you're setting the behavior not within the CSS but within the HTML page in the head section. I don't know of a possibility to make IE use the path of the CSS.