Sounds more like somebody is blocking/intercepting the call to Connect? BTW: I do not use any real time AV scanners or other background security tools, it's my experience that they make more trouble than they help. Same applies to personal firewalls. They all hook the API function calls as they like. If they do not hook correctly the hooked application will fail or even crash. And especially Kaspersky is known to do ugly things in their drivers (as I read in a nice analysis from some driver-guru on the internet a couple of months ago). Unfortunately it's always the poor application vendor who is blamed :(
-- Arno Garrels asvetov wrote: > Hello all! > > I have sporadic problems with TFtpClient where OnSessionClosed event > of DataSocket not always fired. Especially if FTP Server is on the > LAN, or on the same machine as FTP Client and Firewall/Antivirus > Software (in my case Kaspersky Internet Security V6) on the client > machine is installed. > > Mostly the problem occurs with synchronous actions and when > ftpWaitUsingSleep is activated. But also (however seldom) without > ftpWaitUsingSleep option and even with completely Asynchronous logic. > Important: if I deactivate my AV Software, all runs without any > problems. BUT I don't think Kaspersky is responsible for this > problems, because other Clients (i.e. FlashFXP or Filezilla or > ftp.exe) works just fine. > > I can reproduce this problem with all ICS Versions (5 and 6). This is > what I do > > Compile and Start OverbyteIcsFtpServ.exe > Compile OverbyteIcsFtpTst.exe (add ftpWaitUsingSleep option to FTP > Client options) -> start -> activate options: Passive mode, > Synchronous -> click on buttons: connect (we connect to local host) > -> pwd -> dir. > > Finito. We wait until timeout occurred. > > -------- Server Protocol > > FtpServer (c) 1998-2007 F. Piette V1.09 > Using: > TWSocket (c) 1996-2007 Francois Piette V6.08 > TFtpServer (c) 1998-2007 F. Piette V1.53 > Winsock: > Version 2.2 > WinSock 2.0 > Running > ! Server started > ! 127.0.0.1 connected > < 127.0.0.1 USER anonymous >> 127.0.0.1 331 Password required for anonymous. > < 127.0.0.1 PASS [EMAIL PROTECTED] > ! 127.0.0.1 User 'anonymous' is authenticated >> 127.0.0.1 230 User anonymous logged in. > < 127.0.0.1 PWD >> 127.0.0.1 257 "/C:/TEMP" is current directory. > < 127.0.0.1 PASV >> 127.0.0.1 227 Entering Passive Mode (127,0,0,1,11,140). > < 127.0.0.1 LIST >> 127.0.0.1 150 Opening data connection for directory list. >> 127.0.0.1 501 Cannot RETR. Error - Socket is not connected (#10057) > ! 127.0.0.1 Data session closed. Error #10057 > ! 127.0.0.1 disconnected > > ---------- Client Protocol > > Winsock version 2.2 > WinSock 2.0 > Running > Executing Requested Command > < 220-Welcome to my Server > < 220- > < 220 ICS FTP Server ready. > Session Connected, error = 0 >> USER anonymous > < 331 Password required for anonymous. >> PASS [EMAIL PROTECTED] > < 230 User anonymous logged in. > Request 5 Done. > StatusCode = 230 > LastResponse was : '230 User anonymous logged in.' > No error > Command Success > Executing Requested Command >> PWD > < 257 "/C:/TEMP" is current directory. > Request 32 Done. > StatusCode = 257 > LastResponse was : '257 "/C:/TEMP" is current directory.' > No error > Directory is "/C:/TEMP" > Command Success > Executing Requested Command >> PASV > < 227 Entering Passive Mode (127,0,0,1,11,140). >> LIST > < 150 Opening data connection for directory list. > Session Closed, error = 0 > Command Failure > Request 7 Done. > StatusCode = 426 > LastResponse was : '150 Opening data connection for directory list.' > Error = 426 (426 Timeout) > > > I use: > > Windows XP SP2 (all patches), Delphi 2005 and ICS V5, Kaspersky > Internet Security V6 (Please notice: Firewall is deactivated! Only > Mail Antivirus is activated) > > Have somebody else confronted with such problems? Can anybody help? > > - > Thanks for any help & best Regards, A.Svetov -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
