Yup DOSBox. But why doesn't your PC have install disc/s. With most manufactured PC there is a Utility to Create a set of System Discs and with some, like Dell computers, you can create the Real OS install DVD or ISO to burn to DVD or USB thumb drive.
said by Grumpy4:I could use some advice on getting an old DOS app to run on a Windows 7 64 bit machine.
I tried FreeDos, but it seems to require the Windows 7 install disks. The box in question has no Windows 7 install disks.
Thanks