[TenTec] Windows 7

[Bill Sale]

I am thinking about buying a new laptop with Windows 7. I have a oldlap top with windows 95 and it works great talking to my rig and sending cw. I made up serial cable to key the Orion II
I have a newer desktop with xp and it chops the cw up.
Will the new laptops send cw like my old windows 95 laptop or must I use something like MicroHam II to get the laptop to send smoth cw?
N5II
Bill