Hello,

i've found this info in the microsoft.public.winhttp newsgroup:

"Some suggestions for workarounds for the problem in wininet: if you can do
without persistent connections, then disable keep-alive (by setting a
"Connection: Close" request header). Or, after you close the session handle
(the handle created by InternetOpen), call InternetSetOption(NULL,
INTERNET_OPTION_END_BROWSER_SESSION, NULL, 0) -- hopefully this can be done
before calling FreeLibrary on your DLL. Setting this option after closing
all your wininet handles will cause wininet to discard its socket cache.
"

WinInit caches it's socket connections .. and the cleanup routine seems to not work correctly ..

Regards
Christian