I have problem in copy file from maped shared network connected via vpn throw ADSL connection. In my enviroment there is 35 remote vpn location connected with adsl (4Mb down 512Kb up). Sometiems when I copy file larger then 500KB from some location using explorer copy failed. Copy with other software like Totall Commander or with comand copy with parametar /z always works. Actualy I develop application which use SHFileOperation comand to copy file from remote location and this application also failed with copy. As opposed to Windows 7, copy in Windows XP allways works. Is there any diference in implementation of copy with explorer in Windows 7 or there is flag to set SHFileOperation to copy like copy command with /z parametar. Z. <(-e)kas

http://msdn.microsoft.com/en-us/library/bb762164(v=vs.85).aspx

Thanx. I alredy examine this article, and nothing found. Can you point what is answare in this article? Z. <(-e)kas

http://msdn.microsoft.com/en-us/library/bb762164(v=vs.85).aspx

Hi, Thanks for posting in Microsoft TechNet forums. Can you reproduce this issue without VPN environment? Please try the methods from this thread and tell us the result. Best Regards Magon Liu TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thanks. I tried before Turning off Remote Diferential Compression and Disable Recieve Auto Tuning without effect, but Suggeastion 2: CopyFileBufferdSyncronousIo reslove my problem. Thank you very much.Z. <(-e)kas

Sory for unmark "As answer" but unfortunately, after full testing copy from all vpn-s one remote vpn failed. On this vpn, copy started with 30kb but after 10s slow down to 8kb, then to 3kb and failed. In this situation is intersting that, when I started copy file (from maped drive T: to local drive D:) I cannot change disk in cmd from d:\tmp to t: (cmd command wait until copy failed). If I copy file from cmd with copy comand "Copy /Z t:\file.dat d:\", disk T: is accessible and I can list them. Copy in this manenr alway works. I noticed that copy files with other programs (Total commander) start slowly and then acelerate. Of course copy always works. Copy files from that problematic vpn works on another computers where OS is Windows XP. Z. <(-e)kas

Hi, Thank you for taking the time to reply. I am glad the solution above resolved the issue on alll VPNs. However, one of the VPN encounter issue again. Based on the sympton, this could be a different issue. To keep track and avoid confusion, it is strongly suggested to open a new thread so that we can focus on the new issue. Your understanding is appreciated. At the mean time I will mark this thread as answer so that other members in this forum will benefit from it. Regards,Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.