File list (Check if you may need any files):
udt4
....\app
....\...\appclient.cpp
....\...\appclient.exe
....\...\appserver.cpp
....\...\appserver.exe
....\...\cc.h
....\...\Makefile
....\...\recvfile.cpp
....\...\recvfile.exe
....\...\sendfile.cpp
....\...\sendfile.exe
....\...\udt.dll
....\doc
....\...\doc
....\...\...\accept.htm
....\...\...\bind.htm
....\...\...\ccc.htm
....\...\...\cleanup.htm
....\...\...\close.htm
....\...\...\connect.htm
....\...\...\copy.htm
....\...\...\ecode.htm
....\...\...\error.htm
....\...\...\footer.htm
....\...\...\function.htm
....\...\...\header.htm
....\...\...\intro.htm
....\...\...\listen.htm
....\...\...\make.htm
....\...\...\opt.htm
....\...\...\peername.htm
....\...\...\recv.htm
....\...\...\recvfile.htm
....\...\...\recvmsg.htm
....\...\...\reference.htm
....\...\...\select.htm
....\...\...\send.htm
....\...\...\sendfile.htm
....\...\...\sendmsg.htm
....\...\...\socket.htm
....\...\...\sockname.htm
....\...\...\startup.htm
....\...\...\structure.htm
....\...\...\t-cc.htm
....\...\...\t-config.htm
....\...\...\t-data.htm
....\...\...\t-error.htm
....\...\...\t-file.htm
....\...\...\t-firewall.htm
....\...\...\t-hello.htm
....\...\...\t-intro.htm
....\...\...\t-msg.htm
....\...\...\t-udt3.htm
....\...\...\trace.htm
....\...\...\treeview.css
....\...\...\tutorial.htm
....\...\...\udtdoc.css
....\...\hlp
....\...\...\ix_book.gif
....\...\...\ix_down.gif
....\...\...\ix_end.gif
....\...\...\ix_endm.gif
....\...\...\ix_endp.gif
....\...\...\ix_leaf.gif
....\...\...\ix_line.gif
....\...\...\ix_link.gif
....\...\...\ix_list.gif
....\...\...\ix_listm.gif
....\...\...\ix_listp.gif
....\...\...\ix_open.gif
....\...\...\ix_space.gif
....\...\...\ix_up.gif
....\...\index.htm
....\...\main.htm
....\LICENSE.txt
....\Makefile
....\README.txt
....\src
....\...\api.cpp
....\...\api.h
....\...\buffer.cpp
....\...\buffer.h
....\...\ccc.cpp
....\...\ccc.h
....\...\channel.cpp
....\...\channel.h
....\...\co-op.cpp
....\...\co-op.h
....\...\common.cpp
....\...\common.h
....\...\core.cpp
....\...\core.h
....\...\list.cpp
....\...\list.h
....\...\Makefile
....\...\md5.cpp
....\...\md5.h
....\...\packet.cpp
....\...\packet.h