Changes proposed in this pull request:

Your great patch is much appreciated. We are considering to apply your patch into the SoftEther VPN main tree.

SoftEther VPN Patch Acceptance Policy:
http://www.softether.org/5-download/src/9.patch

You have two options which are described on the above policy.
Could you please choose either option 1 or 2, and specify it clearly on the reply?