how can a make a com port on my laptop

[andyxx]

hi all

i have searched in vain to find out if its possible to create a com port on my laptop running windows7

i have bought one of those usb to com port things and downloaded the drivers but its not working

any help would be appreciated

thanks

[Jelly Bean]

Hello there.

 

What are you trying to attach to the laptop as in what hardware have you attached,make and model please?

 

What will you be running from this adaptor?