a simple but learned easily windows function
File list:
WinMain
......\Debug
......\.....\vc60.idb
......\.....\vc60.pdb
......\.....\WinMain.exe
......\.....\WinMain.ilk
......\.....\WinMain.obj
......\.....\WinMain.pch
......\.....\WinMain.pdb
......\WinMain.cpp
......\WinMain.dsp
......\WinMain.dsw
......\WinMain.ncb
......\WinMain.opt
......\WinMain.plg