libcurl can init winsock since 7.8.1

  5.4 Does libcurl do Winsock initialization on win32 systems?

  No.

  On win32 systems, you need to init the winsock stuff manually, libcurl will

  not do that for you. WSAStartup() and WSACleanup() should be used

  accordingly. The reason for this is of course that a single application may

  use several different libraries and parts, and there's no reason for every

  single library to do this.

  Yes (since 7.8.1) if told to in the curl_global_init() call.

  5.5 Does CURLOPT_FILE and CURLOPT_INFILE work on win32 ?