We have released UTFCast Pro v3.3.7546 today to fix a missing runtime library file error on a 64-bit platform.
The problem is caused by an updated runtime library file that was not included in the 64-bit installer. It does not mean the error will always happen. It depends on whether your Windows has the latest Visual C++ runtime library. Nothing else has changed since v3.3.7540. If you did not have this problem, it's not required to update to v3.3.7560. If you are not sure, updating to the latest version is recommended.
Please login to Client Center to download the latest update.