Copy a file

we need a program that would allow me to copy a file. For example, when I execute a virus file,? I can see it on processes list? and does not let me access it. I want to access if for may reasons...first of all for making signatures such as md5 or bianry sig., I would like to get a copy of the file to do this from the file system or hard disk. Even when I want to scan for such a file on my system and it is in use, I can not open file to read the contents to scan for signatures. Do you have any ideas what can I do? Can any driver be written to? unlock/allow access to? this file or someother mft or somewhere I can read contents of this file? This function is to be used by my anti-virus program which is sometimes unable to copy a virus file in use for making signatures for the detection due to? reasons as explained above. ## Deliverables This program is required to help in creating signatures for the virus/spyware iles which do not allow us to do that in our lab, they give message"access denied" or "in use" ?