File list (Check if you may need any files):
dh_thunderbirdlike_component
............................\15 min programming.txt
............................\example
............................\.......\thTest
............................\.......\......\thtest.cfg
............................\.......\......\thtest.dof
............................\.......\......\thtest.dpr
............................\.......\......\thtest.exe
............................\.......\......\thtest.res
............................\.......\......\thtest.~dpr
............................\.......\......\Unit1.dcu
............................\.......\......\Unit1.ddp
............................\.......\......\Unit1.dfm
............................\.......\......\Unit1.pas
............................\.......\......\Unit1.~ddp
............................\.......\......\Unit1.~dfm
............................\.......\......\Unit1.~pas
............................\thunderbirdTree
............................\...............\thunderbirdTree.cfg
............................\...............\thunderbirdTree.dcu
............................\...............\thunderbirdTree.dof
............................\...............\thunderbirdTree.dpk
............................\...............\thunderbirdTree.res
............................\...............\thunderbirdTree.~dpk
............................\...............\ThunderbirdTreeMain.dcu
............................\...............\ThunderbirdTreeMain.pas
............................\...............\ThunderbirdTreeMain.~pas
............................\...............\treeView.res