WenDynpro练习出错

前几天好不容易安装完了SAP NW 7.01 ABAP TRIAL Version.今天在上面做一个WebDynpro的例子程序，开始都很顺利，就是到了最后IE浏览的时候出错了。

网页页面信息如下：

Service cannot be reached

What has happened?

URL http://sapnw:8000/sap/bc/webdynpro/sap/z_tutorial1 call was terminated because the corresponding service is not available.

Note

• The termination occurred in system NSP with error code 403 and for the reason Forbidden.

• The selected virtual host was 0 .

What can I do?

• Please select a valid URL.

• If you do not yet have a user ID, contact your system administrator.

ErrorCode:ICF-NF-http-c:000-u:SAPSYS-l:E-i:sapnw_NSP_00-v:0-s:403-r:Forbidden

HTTP 403 - Forbidden

Your SAP Internet Communication Framework Team

不知道怎么解决了，请大家帮忙！