This a family tree, using a tree data structure of control

My VC B-Tree
............\bt.dsp
............\bt.dsw
............\bt.ncb
............\bt.opt
............\bt.plg
............\bt___Win32_Debug
............\................\bt.exe
............\................\bt.ilk
............\................\bt.pch
............\................\bt.pdb
............\................\CAT_B-T.obj
............\................\vc60.idb
............\................\vc60.pdb
............\CAT_B-T.CPP

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