time ago installed Boson cisco simulator (version beta 3), by trying to run the "Boson NetSim" nothing happened, while trying to run "Boson Network Designer" came an error: "ERROR 7, out of memory. " Solve it by installing the "ActiveX control pad, which is in "Program Files \\ Boson Software \\ Boson NetSim for CCNP \\ International", under the name "setuppad."
work all without incident. 