1、首先请进入以下网址 http://www.helicontech.com/download/，下载免费版的ISAPI_Rewrite组件：ISAPI_Rewrite Lite ( freeware )。如果您仅仅是测试用途使用这个就足够了，如果您是商业应用建议您购买完整版的 ISAPI_Rewrite Full。

2、点击下载到本地的文件 isapi_rwl_x86_0064.msi （该文件名和您下载的版本有关）(注意下载的时候请看清你的系统的环境下载，别下载错了啊，亲．)
进行安装，安装成功之后进入安装目录（默认在C:/Program Files/Helicon/ISAPI_Rewrite）找到httpd.ini文件，点击右键将文件只读属性去掉。然后进入： 开始菜单->程序->Helicon->ISAPI_Rewrite->httpd.ini，点击打开 httpd.ini 文件。
（注：也可以不用下载安装，本站提供此文件的下载，下载请移步《伪静态重写模块rewrite.dll及httpd.conf下载》）
3、复制下面的内容到httpd.ini文件
4、在IIS的Isapi上添加这个筛选器, 筛选器名称Rewrite,可执行文件选择 C:\Program Files\Helicon\ISAPI_Rewrite\ISAPI_Rewrite.dll

上面的筛选器名称可以随便输入，自己认识即可，然后可执行文件，找到你对应的rewrite.dll文件，然后确定即可；

IIS7的童鞋可以移步《URL优化之IIS7如何开启伪静态 》 《=====点我啊点我啊！

下面给一个rewrite规则，仅供参考，注：此规则为ecshop伪静态规则

[ISAPI_Rewrite]
# 为了确保重写规则不影响服务器上的其他站点
# 请将下面的语句前的#号去掉，并将(?:www\.)?ledaokj\.com改为商店所在域名
#RewriteCond %{HTTP:Host} (?:www\.)?ledaokj\.com
RewriteRule ^(.*)/index.html$ $1/index\.php [I]
RewriteRule ^(.*)/category$ $1/index\.php [I]
RewriteRule ^(.*)/feed-c([0-9]+).xml$ $1/feed\.php\?cat=$2 [I]
RewriteRule ^(.*)/feed-b([0-9]+).xml$ $1/feed\.php\?brand=$2 [I]
RewriteRule ^(.*)/feed.xml$ $1/feed\.php [I]
RewriteRule ^(.*)/category-([0-9]+)-b([0-9]+)-min([0-9]+)-max([0-9]+)-attr([^-]*)-([0-9]+)-(.+)-([a-zA-Z]+)(.*)\.html$ $1/category\.php\?id=$2&brand=$3&price_min=$4&price_max=$5&filter_attr=$6&page=$7&sort=$8&order=$9 [I]
RewriteRule ^(.*)/category-([0-9]+)-b([0-9]+)-min([0-9]+)-max([0-9]+)-attr([^-]*)\.html$ $1/category\.php\?id=$2&brand=$3&price_min=$4&price_max=$5&filter_attr=$6 [I]
RewriteRule ^(.*)/category-([0-9]+)-b([0-9]+)-([0-9]+)-(.+)-([a-zA-Z]+)(.*)\.html$ $1/category\.php\?id=$2&brand=$3&page=$4&sort=$5&order=$6 [I]
RewriteRule ^(.*)/category-([0-9]+)-b([0-9]+)-([0-9]+)(.*)\.html$ $1/category\.php\?id=$2&brand=$3&page=$4 [I]
RewriteRule ^(.*)/category-([0-9]+)-b([0-9]+)(.*)\.html$ $1/category\.php\?id=$2&brand=$3 [I]
RewriteRule ^(.*)/category-([0-9]+)(.*)\.html$ $1/category\.php\?id=$2 [I]
RewriteRule ^(.*)/goods-([0-9]+)(.*)\.html$ $1/goods\.php\?id=$2 [I]
RewriteRule ^(.*)/article_cat-([0-9]+)-([0-9]+)-(.+)-([a-zA-Z]+)(.*)\.html$ $1/article_cat\.php\?id=$2&page=$3&sort=$4&order=$5 [I]
RewriteRule ^(.*)/article_cat-([0-9]+)-([0-9]+)(.*)\.html$ $1/article_cat\.php\?id=$2&page=$3 [I]
RewriteRule ^(.*)/article_cat-([0-9]+)(.*)\.html$ $1/article_cat\.php\?id=$2 [I]
RewriteRule ^(.*)/article-([0-9]+)(.*)\.html$ $1/article\.php\?id=$2 [I]
RewriteRule ^(.*)/brand-([0-9]+)-c([0-9]+)-([0-9]+)-(.+)-([a-zA-Z]+)\.html $1/brand\.php\?id=$2&cat=$3&page=$4&sort=$5&order=$6 [I]
RewriteRule ^(.*)/brand-([0-9]+)-c([0-9]+)-([0-9]+)(.*)\.html $1/brand\.php\?id=$2&cat=$3&page=$4 [I]
RewriteRule ^(.*)/brand-([0-9]+)-c([0-9]+)(.*)\.html $1/brand\.php\?id=$2&cat=$3 [I]
RewriteRule ^(.*)/brand-([0-9]+)(.*)\.html $1/brand\.php\?id=$2 [I]
RewriteRule ^(.*)/tag-(.*)\.html $1/search\.php\?keywords=$2 [I]
RewriteRule ^(.*)/snatch-([0-9]+)\.html$ $1/snatch\.php\?id=$2 [I]
RewriteRule ^(.*)/group_buy-([0-9]+)\.html$ $1/group_buy\.php\?act=view&id=$2 [I]
RewriteRule ^(.*)/auction-([0-9]+)\.html$ $1/auction\.php\?act=view&id=$2 [I]