This version of vPoint Guest fixed the issue in copying large files to/from usb drives and added usb peripherals support in windows 8.1.
For users upgrade to vPoint Guest 188.8.131.52, please follow the steps below:
1. Uninstall both the previous version in your virtual machine.
2. Install vPoint Guest 184.108.40.206.
Note: To be fully functional in windows 8.1, vPoint Guest 220.127.116.11 must works together with vPoint Server 18.104.22.168 version and Diana VDI zero client firmware DAhyFS40318031.enc. So, when doing upgrades, please upgrade the 3 of them.