>>Not necessarily. The bug could be in Vista implementation of SMB2.
>>BTW, SMB2 is in Windows Server 2008 as well.
>
>So, does anybody have a couple Windows 7 machines they can test my code with to see if the SMB2 problems exist in Windows7 as well?

Brandon, shortly after Vista was released, we knew about SMB2 problem on windows vista peer-to-peer but not about others.

*-- new to us recently
Information about problem with SMB2 causing corruption on win2008 server and window 7 was described by Allen Whiting at SWFox 2010 over breakfast. After Allen pointed us to your thread, the following results have been confirmed. Chad Newman completed the test with a modified sample of your code as follows:

*-- from Chad after testing
To resolve the issue the following must be done on the server:

1. Run Regedit on the Server computer.
2. Expand and locate the sub tree as follows.
HKLM\System\CurrentControlSet\Services\LanmanServer\Parameters
3. Add a new REG_DWORD key with the name of "Smb2" (without quotation mark)
Value name: Smb2
Value type: REG_DWORD
0 = disabled
1 = enabled
4. Set the value to 0 to disable SMB 2.0, or set it to 1 to re-enable SMB 2.0.
5. Reboot the server.

Supporting Information.

To asssit, I ran a test on this end using sample code against the server termserv which is running Windows 2008 Server and a Windows Vista Workstation, Windows XP Workstation and 2 Windows 7 Workstations. Here are the results:

Without Registry Modification for SMB 2.0

1. Windows Vista and Window XP - Corruption occurred
2. Windows Vista and Windows 7 - Corruption Occurred
3. Windows XP and Windows XP - No corruption
4. Windows 7 and Windows XP - Corruption Occurred
5. Windows 7 and Windows 7 - Corruption Occuured

With Registry Modifications for SMB 2.0

1. Windows Vista and Window XP - No Corruption
2. Windows Vista and Windows 7 - No Corruption
3. Windows XP and Windows XP - No corruption
4. Windows 7 and Windows XP - No Corruption
5. Windows 7 and Windows 7 - No Corruption

*-- end of test results

Brandon, thanks for your input.