I have installed a windows server 2008 r2 with file service enabled. I have a network with 5 computers with windows 7 and all are on the same workgroup (I do not have domain controller and active directory). All the computers can connect to the server and see the shared folder and the files.
My question is how can i secure that the files that are in the shared folder open once a time so everytime only one user from the network can edit the specific file.
Thanks in advance, Spiros