Starting with this release, the qemu guest agent persistently saves file handle numbers in the state directory.
The Windows build of the guest agent, qemu-ga.exe, determines the state directory in one of two ways. The guest administrator may set the state directory with the --statedir option on the command line. Alternatively, if that option is not specified, qemu-ga.exe queries the system for the local state directory at startup (refer to CSIDL_COMMON_APPDATA in <http://msdn.microsoft.com/en-us/library/bb762494.aspx>), and appends the "qemu-ga" subdirectory to it. In either case, the state directory is automatically created if it doesn't exist. The default value can be listed using the "--help" option.
Retrieving CSIDL_COMMON_APPDATA has introduced a new DLL dependency for qemu-ga.exe. The README file in the guest agent package has been updated with details.