set FSO=createobject("scripting.filesystemobject")
set R=New RegExp
R.pattern="\d+\.\d+\.\d+\.\d+"
R.Ignorecase=true
R.Global=true
R.Multiline=true
str=FSO.opentextfile("a.txt").readall()
set Matches=R.execute(str)
set F=FSO.createtextfile("b.txt",2)
For each Match in Matches
F.writeline(Match)
Next
F.close