the wifi info file show
Title:          wifi.tcz
Description:    Tiny Wifi Scanning Tool
Version:        1.1
Author:         Robert Shingledecker
Original-site:  
www.tinycorelinux.comCopying-policy: GPL
Size:      4K
Extension_by:   roberts
Tags:      wifi wireless cli configuration tool
Comments:       A console based tiny wifi scan access point tool.
                Select from menu or type sudo wifi.sh      
Creates wifi.db in HOME directory.
      Can auto connect to first db entry with use of -a flag, e.g.,      
      /usr/local/bin/wifi.sh -a 2>&1 > /tmp/wifi.log      
      Add above to bootlocal or bootsync for quick auto connect.
      When mobile, use menu for select list of APs.
Change-log:     
                2011/06/15 v0.1 Original Awk Program
      2011/07/02 v0.2 Major rewrite to Ash/Awk
      2011/07/09 v0.3 Chng db delimiter to tab, shell protect passwd, bug fix.
      2011/07/14 v0.4 Separate loops for associate and IP request.
      2011/07/23 v0.5 Support of ssids with embedded spaces.      
      2011/07/26 v0.6 Fixed initial wifi detection.
      2011/10/09 v0.7 Added alias to ensure busybox is used.
      2011/11/10 Changed desktop item to use cliorx and Network category.
      2012/07/30 v0.8 Added sleep command for disconnect to complete.
      2012/09/17 v0.9 Added static IP support.
      2012/10/18 v1.0 Fixed db bug introduced by v0.9 patch.
      2012/10/20 v1.1 Added flags "ap?"  and Usage help 
Current:   2012/11/15 v1.1 Code cleanup.
So, perhaps you put the file in the backup at each pc shutdown for keeping all networks informations?
Thats a guess.