i need it to run a program from virtual cd emulated by daemon tools,does it work for this job? and, how much does it take from hdd size ,cpu usage and ram?
If the "virtual cd emulated by daemon tools" is referring to a .ISO file then yes, you can attach that to a virtual Windows XP machine. And I'm not sure what you mean by the second part of that question.
I'm betting he wants to know how much resources it uses. The virtual hard disk file shouldn't consume more than a couple GB depending on what you have saved in the virtual machine. The virtual machine will only use as much ram as you tell it to. when you shut it down, it is free'd up for use in windows 7. The cpu usage also depends on what you have running in the VM