Follow below guide about how to edit your /etc/fstab to automount share folder at boot
http://www.justlinux.com/nhf/Filesystems/Mounting_smbfs_Shares_Permanently.htmlhttp://www.cyberciti.biz/faq/configure-a-system-to-automount-a-samba-share-with-etcfstab/or you can create a script to mount at the share folder like me.

1. Create a script called mount_win in your home folder. Make sure the script is executable.
#!/bin/bash
mount -t cifs -o username=xxx,password=xxx //GEKKY29/share /mnt/win
exec thunar /mnt/win
2. Create a .desktop file name mount_win.desktop in your desktop like this.
[Desktop Entry]
Version=1.0
Encoding=UTF-8
Type=Application
Name=Mount_win
#Comment=Send instant messages over multiple protocols
Categories=Application;
Exec=/sbin/vsuper /home/hata_ph/mount_win
#Icon=pidgin
Terminal=true
StartupNotify=true
Icon=vl-hot.png
Comment=
3. this is optional. To unmount the share folder I also create an unmount_win script like below. Create another unmount_win.desktop file to run the unmount_win script.
#!/bin/bash
umount /mnt/win
[Desktop Entry]
Version=1.0
Encoding=UTF-8
Type=Application
Name=Umount_win
#Comment=Send instant messages over multiple protocols
Categories=Application;
Exec=/sbin/vsuper /home/hata_ph/umount_win
#Icon=pidgin
Terminal=true
StartupNotify=true
Icon=vl-hot.png
Comment=