windows nginx出现 was not signaled for 5s的看过来

windows下 nginx 配置ssl的key是不能存储密码的，否则启动时会提示输入密码 
输入后也启动不起来，会报错： 
2011/04/18 09:49:09 [alert] 1992#4548: the event "ngx_master_1992" was 
not signaled for 5s 

解决方案是将密码刨掉，用法： 
openssl rsa -in f:/ssl.key -out f:/ssl.key.unsecure