com3
to your COM port that is connected to the debuggee. You can see connected COM ports on the device manager.\\.\pipe\
. For example, choose \\.\pipe\HyperDbgDebug
.com2
. However, you can see the exact name of the COM port on the guest's device manager.50000
, but if you want to choose another port, then add an argument as the port to the listen (e.g. 45000
).