I faced this issue initially in my LOCAL PC and when I installled Crypt::SSleay in my machine it worked fine. But even though in the server this module is installed the error is still there. My guess are
1) due to some perl version
2) any missing modules which is causing this issue or the version of any modules.
3) Some setting is missing in IIS.
2009-10-12 16:20:41 UTC in SOAP::Lite