Thank you Gorke,
I already made a cable with the USB / TTL Prolific PL2303 TA chip, without resistor. But I have ERROR in the connection from CDC or StellariumScope, the same error "The write operation timeout has been exceeded".
For me it's strange the cable works well on the Virtuoso App with the TX and the RX in any of the positions, it moves to one side and the other.
On the PC I changed several versions of drivers (prolific, Ascom, etc ...) on two PCs running Windows 7 and 10 with access to .NET 3.5.1 and 4.6 ... But nothing! Always the same error "The write operation timeout has been exceeded". I'm in this alley ... if anything happens to you or someone, thank you in advance.