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| Author | Forum: PowerTCP FTP for ActiveX Topic: FTP Store method crashes VB6 app |
| lledden lledden@famtech.com From: Portland, NY USA Posts: 8 Member Since: 08/18/10 |
posted August 24, 2010 10:43 AM I have a little vb6 utility that uploads files to a server. The app has been working reliably for many users for many years. I updated DartFTP.dll recently and now this utility crashes with no error message when the FTP.Store method is executed. The Store is preceded several commands to create folders, and those all work fine. Any suggestions as to what to look for would be Much appreciated. dFtp.MakeDirectory tbkfolder & "/temp" On Error GoTo errOut dFtp.SendBufferSize = 256000 lStatus.AddItem "Uploading file." dFtp.StoreType = storeReplace dFtp.Store tbkfolder & "/temp", bkFileName Dartnostics... 2.10.0.1 C:\WINDOWS\system32\DartCertificate.dll 2.1.0.1 C:\WINDOWS\system32\DartFtp.dll 2.1.0.1 C:\WINDOWS\system32\DartSecure2.dll 2.9.0.0 C:\WINDOWS\system32\DartSock.dll 2.8.0.4 C:\WINDOWS\system32\DartUtil.dll 1.8.0.4 C:\WINDOWS\system32\DartWeb.dll 1.9.0.0 C:\WINDOWS\system32\DartZip.dll |
| Nick B (Admin) From: Utica, NY USA Posts: 619 Member Since: 05/25/10 Extra Support Options Custom Application Development |
posted August 25, 2010 9:35 AM Hello, We are unable to reproduce this locally; are you able to upload a file to your server using our included FTP Listview sample? You may want to output the trace to a logfile to examine. Do you find the same issue when you try to upload a file to some other ftp server? What OS are you running? Do you have any firewall or AV active? ------ |
| lledden lledden@famtech.com From: Portland, NY USA Posts: 8 Member Since: 08/18/10 |
posted August 27, 2010 1:10 PM Thanks for your response. I am able to upload a file using the FTP Listview sample. I have compared the code between that sample and my application and have made adjustments. Now my app does not crash, but it also does not do a file upload. It returns an error 500 'MODE C': command not understood. I've searched for this message but can't find any thing that could give me a clue as to what to look for. |
| Nick B (Admin) From: Utica, NY USA Posts: 619 Member Since: 05/25/10 Extra Support Options Custom Application Development |
posted August 27, 2010 2:06 PM Hello, I apologize for not catching this before, you do not appear to be specifying the remote filename, just the folder you are uploading to. If that does not help, what are the values of the variables you are using? Do you know what was causing the crash? ------ |
| lledden lledden@famtech.com From: Portland, NY USA Posts: 8 Member Since: 08/18/10 |
posted August 30, 2010 9:31 AM Thanks for your response. When comparing my code to the Listview sample I noticed that several properties were being set in Listview that I did not set, just as Type, Passive, and some others. I set all these params in my code, and the app no longer crashes at the Store. Now it simply aborts with the error message 500 'MODE C': command not understood. For this last test, my params are... dFtp.Store tbkfolder & "/temp.zip", bkFileName tbkfolder = "NNLALE0002/backup" bkfilename = "D:\aV5\AV5Basic\IRestore_Storsve_with_multimedia_20080829.zip" I can't understand why my app returns this error and the Listview sample does not. |
| Nick B (Admin) From: Utica, NY USA Posts: 619 Member Since: 05/25/10 Extra Support Options Custom Application Development |
posted August 30, 2010 10:42 AM Hello, It seems as though you're setting the TransferMode property to ftpCompressed, which your server does not support (MODE C: Compression Mode). ------ |
| lledden lledden@famtech.com From: Portland, NY USA Posts: 8 Member Since: 08/18/10 |
posted August 31, 2010 10:23 AM Thanks very much for your help. My app is working again. |
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