That means that I no longer need to distribute capture and non-capture
versions of Ethereal for Win32; one version (compiled with WinPcap headers)
can run on systems with or without WinPcap.
For systems that don't have WinPcap, instead of disabling the Capture
menu, Capture|Start brings up a dialogue informing the user that wpcap.dll
was not loadable, and gives a URL to the WinPcap home page.
svn path=/trunk/; revision=3249