Fix file locking on Windows

[chris]

There are two locking issues on Windows: Box cannot back up open files, and while Box is backing up a file, other applications cannot open it for writing.

Changing our access method to Volume Shadow Copy Service is probably the right fix for both of these, but it only works on XP and above, and I cannot install the SDK it on my development machine. I would also like to make it work with MinGW without requiring a restrictively-licensed SDK download from Microsoft.

Please could someone use a Windows machine (XP or above, Windows Activation compliant) to download the SDK and send it to me?

Another option (workaround) might be to use the Windows command-line tools to create a shadow copy and back that up instead of the original. However, I think that would be a kluge, difficult to install, and difficult to detect and handle errors with.

[chris]

The SDK can be found here.

[gadlen]

I fetched it. It can (for now) be found here. http://lee.org/temp/Volume-Shadow-Copy-Service%20SDK-7.2-setup.exe

:-) Lee http://lee.org

[chris]

Got it, thanks.

[petej]

ShadowBox?.bat, an example of how to use Shadow Copy, vshadow.exe

[chris]

Not in 0.11, sorry.