刚在Pconline下载了一个Flash，用自己系统关联的Macromedia Flash Player播放了一会儿，因为不能拖动播放进度，就想在打开方式选择Flash Player Classic，没想到又出现了"拒绝访问"
半个月前出现过一次这种情况，当时是装了一个游戏之后发现打开方式"拒绝访问"了，在注册表和组策略里找了半天未果，无奈之下还原注册表解决了。最近一个多星期也没装什么新软件，竟然又出现了这种情况，都想还原注册表了，Google搜索了"打开方式 拒绝访问"，没想到真找到解决方法了
用记事本等文字编辑软件，将以下内容保存为*.reg文件(*随意命名)，双击导入注册表即可解决。
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\Unknown]
"AlwaysShowExt"=""
"QueryClassStore"=""
[HKEY_CLASSES_ROOT\Unknown\shell]
@="openas"
[HKEY_CLASSES_ROOT\Unknown\shell\openas]
[HKEY_CLASSES_ROOT\Unknown\shell\openas\command]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\
00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\
6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,25,00,53,\
00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,00,5c,00,73,00,\
79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,00,68,00,65,00,6c,00,6c,\
00,33,00,32,00,2e,00,64,00,6c,00,6c,00,2c,00,4f,00,70,00,65,00,6e,00,41,00,\
73,00,5f,00,52,00,75,00,6e,00,44,00,4c,00,4c,00,20,00,25,00,31,00,00,00