1、下载：http://www.isapirewrite.com/download/isapi_rwl_0055.msi安装默认目录即可
2、安装好后，找到文件夹，右键设置everyone账号全权限，并设置C:\ProgramFiles\Helicon/ISAPI_Rewrite属性可写
3、配置IIS，打开Internet 信息服务，右键，web站点属性，点ISAPI筛选器选项卡，添加筛选器，名称填成rewrite，路径自己指定ISAPI_Rewrite.dll(在软件安装的根目录下)

4、最后添加rewrite规则，正则，找到ISAPI_Rewrite的安装目录，把httpd.ini的只读属性去掉，打开编辑以下代码全部复制进去，覆盖原先的即可：
[ISAPI_Rewrite]
# 3600 = 1 hour
CacheClockRate 3600
RepeatLimit 32
# Protect httpd.ini and httpd.parse.errors files
# from accessing through HTTP
RewriteRule ^(.*)/archiver/([a-z0-9\-]+\.html)$ $1/archiver/index\.php\?$2
RewriteRule ^(.*)/forum-([0-9]+)-([0-9]+)\.html$ $1/forumdisplay\.php\?fid=$2&page=$3
RewriteRule ^(.*)/thread-([0-9]+)-([0-9]+)-([0-9]+)\.html$ $1/viewthread\.php\?tid=$2&extra=page\%3D$4&page=$3
RewriteRule ^(.*)/profile-(username|uid)-(.+?)\.html$ $1/viewpro\.php\?$2=$3
5、重启IIS
注意：这个伪静态规则文件仅适合Discuz！X2.0版本使用！
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[ISAPI_Rewrite]
# 3600 = 1 hour
CacheClockRate 3600
RepeatLimit 32
# Protect httpd.ini and httpd.parse.errors files
# from accessing through HTTP
RewriteRule ^(.*)/topic-(.+)\.html(\?(.*))*$ $1/portal\.php\?mod=topic&topic=$2&$4
RewriteRule ^(.*)/article-([0-9]+)-([0-9]+)\.html(\?(.*))*$ $1/portal\.php\?mod=view&aid=$2&page=$3&$5
RewriteRule ^(.*)/forum-(\w+)-([0-9]+)\.html(\?(.*))*$ $1/forum\.php\?mod=forumdisplay&fid=$2&page=$3&$5
RewriteRule ^(.*)/thread-([0-9]+)-([0-9]+)-([0-9]+)\.html(\?(.*))*$ $1/forum\.php\?mod=viewthread&tid=$2&extra=page\%3D$4&page=$3&$6
RewriteRule ^(.*)/group-([0-9]+)-([0-9]+)\.html(\?(.*))*$ $1/forum\.php\?mod=group&fid=$2&page=$3&$5
RewriteRule ^(.*)/space-(username|uid)-(.+)\.html(\?(.*))*$ $1/home\.php\?mod=space&$2=$3&$5
RewriteRule ^(.*)/blog-([0-9]+)-([0-9]+)\.html(\?(.*))*$ $1/home\.php\?mod=space&uid=$2&do=blog&id=$3&$5
RewriteRule ^(.*)/(fid|tid)-([0-9]+)\.html(\?(.*))*$ $1/index\.php\?action=$2&value=$3&$5

关键词：iis,discuz