To enter the global configuration, open the "File" menu, "Options" item. You will see the following window:

IP.Tree Data Folder: This is the folder where your data files are. The location of this folder was set by the installation program.
You can change this folder at will, given that you have complete access to the folder you select (full read-write access).
You can use the "Folder lookup" button (the three dots button to the right of the field) to pick up the folder from the available folders list. If the folder you want is hidden, you can still use it simply typing its name.
Your data won't be copied from one folder to the other, so you can have several sets of data and with this option you can switch between them.
When you select a folder that have no IP.Tree data, an empty set of files will be created.
IP.Tree won't track your folder changes, so take care to don't change your data location if you are not sure where it is so you can find it later.
When you change the folder in this option, you will be prompted to confirm your change as soon as you press the "Save" button.

If you press No, your changes are undone and you are back to the program.
If you answer Yes, your data folder is set and saved, and your program will restart with the new data location.
Use NMAP as external program to examine the network: This checkbox allows you to call NMAP from IP.Tree. There are plenty of free programs to scan your network. We choose NMAP as it is well known, open source and safe to use to obtain information about your network devices.
You can download NMAP free from nmap.org (Click here to download). It is simple to install, and IP.Tree will use it without further action from you.
We recommend you install it, otherwise you won't be able to detect some devices of your network automatically or obtain information about them.
When you tick this checkbox, you will be able to use the "Exhaustive Scan", NMAP Location and NMAP parameters options.

Exhaustive Scan: If you tick this option, each IP of your network or range will be scanned. If you left it not ticked, only those IPs that response to a PING will be scanned by NMAP. Since some Firewalls can block PING responses, it is recommended that you activate this option.
NMAP Location: This field allows you to specify the exact location of the NMAP program. Look it up using the ellipsis button (...) or type in the folder and program name.
NMAP Parameters: This field allows you to change the NMAP command line parameters. Check the NMAP documentation if you want to know about this. Our default parameters should work fine with IP.Tree.
Temporal Folder: This folder will be used to generate some temporal files. By default it will be Window's temporal folder, you may change it at will.