Windows 8 RDP Disk Sharing protocol is not working with rDesktop(linux) and other RDP v7.x based Clients RRS feed

  • Question

  • Hi Team

    Recently we are testing the rDesktop(linux based RDP Client with Windows 8 as Target. We found that "Disk Share" functionality is not working. 

    We understood that Windows 8 may be using RDP v8.x.

    Is there any difference between RDP v7 and v8 with respect to "Disk Share" functionality?

    If yes, where can i find the RDP v8 specification?

    Why v8 does not support back ward comparability? If supports, what is the configuration required?

    Thanks in Advance.

    Wednesday, February 26, 2014 6:23 PM

All replies

  • Hi PC Varma:

    I have alerted the open specifications team regarding your inquiry. A member of the team will be in touch soon.

    Regards, Obaid Farooqi

    Wednesday, February 26, 2014 10:29 PM
  • Hi PC Varma,

    I can help you with this.

    Yes, generally Windows 8 uses RDP 8.  As could Windows 7.1, if the RDP8 update to Windows 7.1 is applied: RDP8 update to W7SP1: after installing the DTLS update to W7SP1:

    You cite “Disk Share” functionality.  To ensure that we are on the same page, I take that to mean specifically the protocol [MS-RDPEFS] “Remote Desktop Protocol: File System Virtual Channel Extension”:  Or, are you referencing something else?  I am not aware of any RDP7 v RDP8 (or Windows 7 v Windows 8) differences for [MS-RDPEFS].

    Can you supply a decrypted, uncompressed network trace of your scenario to me at “dochelp (at) microsoft (dot) com”?  You can disable server-to-client encryption by setting HKLM\System\CCS\Control\Terminal Server\Winstations\RDP-Tcp\MinEncryptionLevel = 0 (TS_ENCRYPTION_LEVEL_NONE).  You can disable server-to-client compression via GPEdit.  Set Local Computer Policy\Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Remote Session Environment\Configure compression for RemoteFX data to “Do not use a compression algorithm”.  Rdesktop has varios commandline switches to disable client-to-server encryption and compression.  Once both compression and encryption both client-to-server and server-to-client are disabled, please take a network trace and send.

    Bryan S. Burgin Senior Escalation Engineer Microsoft Protocol Open Specifications Team

    Thursday, February 27, 2014 12:45 AM
  • Hi PC Varma,

    Touching base; I did not see a reply or mail to Dochelp.  Did the information above (link to [MS-RDPEFS] and other details) resolve this issue for you?

    Bryan S. Burgin Senior Escalation Engineer Microsoft Protocol Open Specifications Team

    Monday, March 3, 2014 6:31 PM
  • Hi PC Varma,

    I'm going to close this issue.  But, I would be happy to assist further if you have more feedback.

    Bryan S. Burgin Senior Escalation Engineer Microsoft Protocol Open Specifications Team

    Wednesday, March 5, 2014 6:23 PM