XAMPP下无法启动apache

哭求：XAMPP下APACHE无法启动
昨晚刚安装上XAMPP·1.7.3，我的系统是win764位系统，点APACHE后的start，显示running ，但紧接着就提示：busy apache started.查看XAMPP/APACHE/LOGS下的ERRor文件，信息如下：

Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.





怎么解决啊，我机器上我把IIS卸载了，迅雷和QVOD也没有打开，去服务里也没发现服务运行，啥原因啊

我晕了 出了那一堆的错误 你自己都不看看错误是啥意思吗 否则人家输出这错误还有什么意义？
Syntax error on line 7 of D:/1/xampp/apache/conf/extra/httpd-xampp.conf:
SetEnv takes 1-2 arguments, an environment variable name and optional value to pass to CGI.

D:/1/xampp/apache/conf/extra/httpd-xampp.conf文件的第7行有语法错误！！ 
SetEnv需要1-2个参数，分别是传给CGI的一个环境变量和一个可选的值。