Digi RealPort Setup Error: 5 Line: 95



We are trying to install the Digi RealPort to connect an IP device to a COM port in a Windows Server 2008 R2 64bits. This Server is a Virtual Machine of VMWare, and works in a ESX4 platform. We install as administrator.

We did it in a WMware workstation with the same Windows Server 2008 R2 64bits and it works properly.

We test with the Driver
Digi RealPort Driver & Setup Wizard Version 4.5.372.0, 04/19/2013

We have the next problem:
Digi RealPort Setup Wizard has stopped working.

A problem caused the program to stop working correctly. Please close the program.

Searching in the help menu, we test to install with the command prompt and we have the next error.
Please contact Digi technical support with the following:
Error: 5 File: .\WinNTInfMgmt.cpp Line: 95
Failed to complete operation!!

Where is the problem and how we can solve it?
Can we know what is this error and what the WinNTInfMgmt.cpp Line: 95 do in the process.