MFC-based FTP Transfer is slow
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From: raviviswanathan.81 on 26 May 2008 22:47 Hello, I was building a simple FTP client using the CInternetSession class and the GetFtpConnection() which returns a pointer to the FTPConnection object. I was doing this in synchronous mode. No callbacks etc. I then use the PutFile() to upload a file. I was able to upload a file without any problems. But the tranfer rate was extremely poor. By poor, it's less than 20% of the speed that I get using the command-line FTP in Windows. The TcpWindowSize in the registry setting is at 1MB. The client and the server here are on Win2003. I am using IIS on the server. Is there any setting that MFC initializes to default which explains why my speed is poor compared to the command-line FTP? I can't see any new parameters I can pass if I use the non-MFC WinInet functions also... Please advise! Thanks |