If I enable the Netplay, retroarch closes unexpectedly (?)

Hello friends!

Every time the enable (ON) the “Netplay”, retroarch closes unexpectedly. This happen only if enable the “Netplay”. I do not really understand the motive.

Pls, Mr. hunterk, he would appreciate any clarification.

PD. I have the latest version (1.3.6), my SO is VISTA (Intel Core2 Duo CPU T7250 2GHz - 2,00GB RAM)

With my very sincere thanks!