SFFS trouble with open QuickBooks files

[RadicalDad]

Having just upgraded to Windows 7 and the latest version of QuickBooks, I am finding that the SFFS is generating an error when QB opens because the QB data files are locked. I know that QB uses record locking to allow multi-user access, but it still seems that shadow copy should be able to get around this. (By the way, I'm only using one copy of QB.) I have included the log file. (QB data file name has been munged for security reasons.) Suggestions to avoid this error (and the notifications)?

[superflexible]

Volume Shadowing can only help reading locked files. But in this case, the destination was locked. Not the source side.

If you are doing a two-way synchronization, you must make sure that QuickBooks is only opened on one of the two machines at any given time.