When you check the digital signature of 2.13 version of Fences (the latest I believe), the hash is done using MD5. Almost every other software I checked is using SHA1. Can you please change the hash algorithm for the signature to be SHA1? I think many organizations are being encouraged on many fronts to actually move to SHA2 (any variant - but SHA256 would be best). Thanks...
You can easily see this by right clicking on the fences.exe, select properties and then select "Digital Signature" tab.