winhttp Plugin
Purpose
The winhttp plugin for libstrongswan is a CRL/OCSP fetcher plugin used
with the Windows platform. It supports fetching of CRL
or OCSP information over HTTP or HTTPS URLs using the native WinHTTP API.
The plugin is disabled by default and can be enabled with the
./configure option
--enable-winhttp
As MinGW usually does not come with a libwinhttp.dll, use a copy of
winhttp.dll from Windows\System32 for a cross-platform build.