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Thread: TrueCrypt 4.0

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    TrueCrypt 4.0

    TrueCrypt - <img src=/S/free.gif border=0 alt=free width=30 height=15> Open-Source On-The-Fly Disk Encryption Software for Windows XP/2000 and Linux <img src=/S/new.gif border=0 alt=new width=35 height=15>

    "We are pleased to announce that TrueCrypt 4.0 has been released. Among the new features is the ability to mount TrueCrypt volumes on Linux (TrueCrypt has been ported to Linux), ability to write to outer volume without risking that a hidden volume within it will get damaged, support for x86-64 (64-bit) and big-endian hardware platforms, support for Windows XP x64 Edition (64-bit) and Windows Server 2003 x64, full support for keyfiles, language packs, network drives, auto-dismount, hot keys, and many more. In addition to new functionalities, many optimizations have been made and several bugs have been fixed. "

    Alan

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    Re: TrueCrypt 4.0

    Just updated on November 25, 2005. See What is new in TrueCrypt 4.1

    Alan

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    Re: TrueCrypt 4.0

    I posted the following problem to Microsoft Support.

    ************************************************** *********
    Problem title: I've been getting the following event log error(s) (TWICE daily)...
    Product: Microsoft Windows XP Professional
    Sent on: 11/21/2005 8:08:06 PM
    Last modified: 11/26/2005 7:07:01 PM

    Description: Problem Description: I've been getting the following intermittent event log error(s) (TWICE daily) from the VSS service.

    Event Type: Error
    Event Source: VSS
    Event Category: None
    Event ID: 12289
    Date: 11/21/2005
    Time: 5:45:09 AM
    User: N/A
    Computer: MYCOMP1
    Description:
    Volume Shadow Copy Service error: Unexpected error GetVolumeNameForVolumeMountPointW( ?Volume{119ccf2c-3309-11da-bce4-000d87652f72}, ...). hr = 0x80070003.

    For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

    Data:
    0000: 53 50 52 44 49 46 46 43 SPRDIFFC
    0008: 31 31 31 00 00 00 00 00 111.....
    0010: 53 50 52 44 49 46 46 43 SPRDIFFC
    0018: 39 36 00 00 00 00 00 00 96......

    1. This error message is poorly constructed and communicates no useful information to the user.

    2. I've tried searching the Microsoft KB but was not able to locate anything related and useful.

    3. I've also tried Googling for this error. I got a few hits and people, like myself, are scratching their heads wondering what is causing this error.

    After weeks of investigative effort, I have identified the cause of the problem (at least for me). It is due to some sort of bug in the Windows VSS service and related to running a program called TrueCrypt.

    I use an open source application called TrueCrypt for encrypting certain data on my computer. Whenever I use this application, UNTIL I reboot after using it, I will get the above error in the event log twice during my daily backups of my C: (system) disk. Once I reboot, these error messages disappear until the next time I use TrueCrypt.

    You can obtain a copy of Truecrypt for testing here:
    http://www.truecrypt.org/downloads.php
    Operating System:WindowsXP SP2
    ************************************************** ******************
    Additional comment:
    For the last 2+ weeks I have been going back and forth with a WinXP Support group that appears to be based in China. Unfortunately, they are behind on their English lessons so it is often difficult to understand them fully. The reply below is somewhat more understandable than others I have received.

    <hr>As we all know, by enabling VSS, when backing up files, the backup application will not only scan hard disk to back up files, but also scan memory storages to back up these active applications. If the active applications, such as an open Word document, cannot be backed up successfully, a VSS error will be logged.

    Regarding why the error occurs even we have dismounted Truecrypt volume, according to our test, I think this is caused by the design of the Truecrypt program. After dismounted Truecrypt volume, the related information will not be released from memory storage unless we restart the computer. When running Ntbackup with VSS enabled, it detects the Truecrypt volume information in memory storage but cannot back up the related data successfully. Then a VSS error is logged.

    Please understand due to the different design of each program, we cannot ensure all the active application can be backed up when VSS enabled. When the similar issues are encountered, we always suggested disable VSS when running Ntbackup which is more stable.

    If anything is unclear, please feel free to contact me.

    Again, I'm sorry for the inconvenience you have experienced before. I look forward to your reply.

    Best Regards,
    Carrie Zhou<hr>

    Basically, they are blaming the above error on TrueCrypt and saying that TrueCrypt is not freeing memory. These event errors will remain until I reboot. I have tried clearing memory by causing all processes to swap out and be reloaded as needed but this doesn't eliminate the event errors. Which makes me wonder if the MS rep is blowing smoke with their explanation or not?

    If anyone wants to try and duplicate this error, this is how I think you can create it:

    1. On a WinXP SP2 system , create a Windows Backup job for your system (C<img src=/S/smile.gif border=0 alt=smile width=15 height=15> drive with VSS enabled and all folders and content backed up
    2. Schedule this Windows Backup job to run at sometime in the future
    3. Create or open an encrypted volume in Truecrypt
    4. Mount the Truecrypt volume
    5. Create some folders on the volume and move some data into it
    6. Dismount the Truecrypt volume
    7. DO NOT reboot
    8. Run the Windows Backup job you created in step one.

    The VSS event errors should occur every time the system drive backup job runs until you reboot.

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