File list (Check if you may need any files):
P2P_QQ\Client\chatclient.cpp
......\......\chatclient.h
......\......\chatdialog.ui
......\......\chatserver.cpp
......\......\chatserver.h
......\......\Client.pro
......\......\Client.pro.user
......\......\clientdialog.cpp
......\......\clientdialog.h
......\......\clientdialog.ui
......\......\debug\chatclient.o
......\......\.....\chatserver.o
......\......\.....\Client.exe
......\......\.....\clientdialog.o
......\......\.....\main.o
......\......\.....\moc_chatclient.cpp
......\......\.....\moc_chatclient.o
......\......\.....\moc_chatserver.cpp
......\......\.....\moc_chatserver.o
......\......\.....\moc_clientdialog.cpp
......\......\.....\moc_clientdialog.o
......\......\.....\moc_server.cpp
......\......\.....\moc_server.o
......\......\.....\server.o
......\......\main.cpp
......\......\Makefile
......\......\Makefile.Debug
......\......\Makefile.Release
......\......\object_script.Client.Debug
......\......\object_script.Client.Release
......\......\server.cpp
......\......\server.h
......\......\ui_chatdialog.h
......\......\ui_clientdialog.h
......\Server\debug\main.o
......\......\.....\moc_serverdialog.cpp
......\......\.....\moc_serverdialog.o
......\......\.....\moc_servertcpsocket.cpp
......\......\.....\moc_servertcpsocket.o
......\......\.....\moc_tcpclientsocket.cpp
......\......\.....\moc_tcpclientsocket.o
......\......\.....\moc_tcpserver.cpp
......\......\.....\moc_tcpserver.o
......\......\.....\Server.exe
......\......\.....\serverdialog.o
......\......\.....\servertcpsocket.o
......\......\.....\tcpclientsocket.o
......\......\.....\tcpserver.o
......\......\main.cpp
......\......\Makefile
......\......\Makefile.Debug
......\......\Makefile.Release
......\......\server.cpp
......\......\Server.pro
......\......\Server.pro.user
......\......\serverdialog.cpp
......\......\serverdialog.h
......\......\serverdialog.ui
......\......\servertcpsocket.h
......\......\tcpclientsocket.cpp
......\......\tcpclientsocket.h
......\......\tcpserver.cpp
......\......\tcpserver.h
......\......\ui_serverdialog.h
......\Client\debug
......\......\release
......\Server\debug
......\......\release
......\Client
......\Server
P2P_QQ