WINDOWS - do this first:
Create shared folder <newshare>
Create fileshare user <newuser>

Share permissions on <newshare>:
    <newuser> read/write
    Advanced sharing | permissions - change, read.
Security:
    uncheck 'Full control' for <newuser>


Linux
sudo to root [$sudo -s]
Create new group - e.g. windowshare [$groupadd windowshare]
Create new folder - e.g. /mounts/windows
Create new user  and add to new group - e.g. customeruser [$useradd -m 0d /home/customeruser -s /bin/bash -G windowshare -U customeruser]
Create folder 'cifs' in /etc
Change permissions on folder to 600 (user root)
Create .smbcredentials file in /etc/cifs with <newuser> windows credentials with user=<newuser> CR password=<password>
Create new line in /etc/fstab: //WINDOWSSERVER/share$ /mounts/windows cifs gid=windowshare,credentials=/etc/cifs/.smbcredentials,iocharset=utf8,sec=ntlm,file_mode=0770,dir_mode=0770 0 0
Put 'mount /mounts/windows in /etc/rc.local to ensure shares mount at boot time if necessary.
run 'mount -a' as root
check customeruser user permissions on share:
    $su - customeruser [enter password]
    $cd /mounts/windows
    $touch testfile.txt [should see file appear on windows share]
    $mkdir testfilectory
    $rm -rf testfilectory
    $rm testfile.txt
    $exit