Modify the Internet Explorer 6 Unsafe file list

Internet Explorer 6 contains a hard-coded list of unsafe files in the
shdocvw.dll file. IE 6 uses the unsafe-file list to prevent you from
accidentally opening a file type that might cause problems on your computer.

The complete list of unsafe extensions is:

• .ad
  
• .adp
  
• .asp
  
• .bas
  
• .bat
  
• .chm
  
• .cmd
  
• .com
  
• .cpl
  
• .crt
  
• .exe
  
• .hlp
  
• .hta
  
• .inf
  
• .ins
  
• .isp
  
• .js
  
• .jse
  
• .lnk
  
• .mdb
  
• .mde
  
• .msc
  
• .msi
  
• .msp
  
• .mst
  
• .pcd
  
• .pif
  
• .reg
  
• .scr
  
• .sct
  
• .shb
  
• .shs
  
• .url
  
• .vb
  
• .vbe
  
• .vbs
  
• .vsd
  
• .vss
  
• .vst
  
• .vsw
  
• .ws
  
• .wsc
  
• .wsf
  
• .wsh

You can add file extensions to the unsafe-file list:

• Navigate to:
  

  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\UnsafeFiles\Include
  
  You will have to create the key if it does not exist. It won’t.

  
  
• From the Edit menu, select New, Key
  
• Enter the extension you want to add
  for example if .wsh were not in the
  default list, you could add it:
  .wsh

You can make exceptions to the unsafe-file list:

• Navigate to:
  

  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\UnsafeFiles\Exclude
  
  You will have to create the key if it does not exist. It won’t.

  
  
• From the Edit menu, select New, Key
  
• Enter the extension you want to exclude
  for example to exclude .exe from
  the default list, add it:
  .exe

Messed up or want to get back to defaults, just delete the keys you added. In
most cases delete the UnsafeFiles key.