Weblink driver

I am creating a Weblink filter driver (based on WebLinkDemo sample from SDK) to handle one particular type of links.

Everything works OK, except for the “filtering” part:

if I determine that I DON’T want to handle this link – how do I invoke the Acrobat’s default handler?
I’ve tried returning false from my FollowLink() function – there was no visible effect.

I’ve also tried calling WWWOpenURL(avDoc, sURL, sFormData) as it soundls like it would do what I want, also with no visible effect.

At the moment I simply get the path to the default browser and run it with the passed in URL:

char* browserPath = GetAppSpecifier(false/*ASBool promptUser*/);

ShellExecute(0, 0, browserPath, sURL, 0, SW_SHOWNORMAL);

Is that the ONLY way to handle unwanted links?

Thank you!