用友t3运行时错误70，拒绝的权限

是由于HOSTS文件丢失或者损坏造成的，这样你可以去别的电脑上直接拷一个到你电脑上（c盘-windows-system32-drivers\etc）这是最简便的方法，如果不方便，你可以在桌面上新建一个hosts文件，是记事本格式的，把下面的文件复制进去。
# Copyright (c) 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
127.0.0.1localhost

然后复制到上面的地址即可。