Copy & Paste into html.reg then execute the file
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\.htm]
"PerceivedType"="text"
@="htmlfile"
"Content Type"="text/html"
[HKEY_CLASSES_ROOT\.htm\OpenWithList]
[HKEY_CLASSES_ROOT\.htm\OpenWithList\FRONTPG.EXE]
[HKEY_CLASSES_ROOT\.htm\OpenWithList\notepad.exe]
[HKEY_CLASSES_ROOT\.htm\OpenWithList\WINWORD.EXE]
[HKEY_CLASSES_ROOT\.htm\PersistentHandler]
@="{eec97550-47a9-11cf-b952-00aa0051fe20}"
[HKEY_CLASSES_ROOT\.html]
"PerceivedType"="text"
@="htmlfile"
"Content Type"="text/html"
[HKEY_CLASSES_ROOT\.html\PersistentHandler]
@="{eec97550-47a9-11cf-b952-00aa0051fe20}"
[HKEY_CLASSES_ROOT\htmlfile]
@="HTML Document"
[HKEY_CLASSES_ROOT\htmlfile\BrowseInPlace]
@=""
[HKEY_CLASSES_ROOT\htmlfile\CLSID]
@="{25336920-03F9-11cf-8FD0-00AA00686F13}"
[HKEY_CLASSES_ROOT\htmlfile\DefaultIcon]
@="\"%1\""
[HKEY_CLASSES_ROOT\htmlfile\ScriptHostEncode]
@="{0CF774D0-F077-11D1-B1BC-00C04F86C324}"
[HKEY_CLASSES_ROOT\htmlfile\shell]
@="opennew"
[HKEY_CLASSES_ROOT\htmlfile\shell\Edit]
@="&Edit"
[HKEY_CLASSES_ROOT\htmlfile\shell\Edit\command]
@="\"C:\\Program Files\\Microsoft Office\\Office10
\\msohtmed.exe\" %1"
[HKEY_CLASSES_ROOT\htmlfile\shell\open]
@="Open in S&ame Window"
[HKEY_CLASSES_ROOT\htmlfile\shell\open\command]
@="\"C:\\Program Files\\Internet
Explorer\\iexplore.exe\" -nohome"
[HKEY_CLASSES_ROOT\htmlfile\shell\open\ddeexec]
@="\"file://%1\",,-1,,,,,"
"NoActivateHandler"=""
[HKEY_CLASSES_ROOT\htmlfile\shell\open\ddeexec\Application
]
@="IExplore"
[HKEY_CLASSES_ROOT\htmlfile\shell\open\ddeexec\Topic]
@="WWW_OpenURL"
[HKEY_CLASSES_ROOT\htmlfile\shell\opennew]
@="&Open"
[HKEY_CLASSES_ROOT\htmlfile\shell\opennew\command]
@="\"C:\\Program Files\\Internet Explorer\\iexplore.exe\"
%1"
[HKEY_CLASSES_ROOT\htmlfile\shell\opennew\ddeexec]
@="\"%1\",,-1,0,,,,"
"NoActivateHandler"=""
[HKEY_CLASSES_ROOT\htmlfile\shell\opennew\ddeexec\Applicat
ion]
@="IExplore"
[HKEY_CLASSES_ROOT\htmlfile\shell\opennew\ddeexec\IfExec]
@="*"
[HKEY_CLASSES_ROOT\htmlfile\shell\opennew\ddeexec\Topic]
@="WWW_OpenURLNewWindow"
[HKEY_CLASSES_ROOT\htmlfile\shell\Print]
@="&Print"
[HKEY_CLASSES_ROOT\htmlfile\shell\Print\command]
@="\"C:\\Program Files\\Microsoft Office\\Office10
\\msohtmed.exe\" /p %1"
[HKEY_CLASSES_ROOT\htmlfile\shell\printto]
[HKEY_CLASSES_ROOT\htmlfile\shell\printto\command]
@=hex
(2):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,00,52,00,6
f,00,6f,00,74,00,\
25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,0
0,5c,00,6d,00,73,\
00,68,00,74,00,6d,00,6c,00,2e,00,64,00,6c,00,6c,00,2c,00,5
0,00,72,00,69,00,\
6e,00,74,00,48,00,54,00,4d,00,4c,00,20,00,22,00,25,00,31,0
0,22,00,20,00,22,\
00,25,00,32,00,22,00,20,00,22,00,25,00,33,00,22,00,20,00,2
2,00,25,00,34,00,\
22,00,00,00
[HKEY_CLASSES_ROOT\htmlfile\ShellEx]
[HKEY_CLASSES_ROOT\htmlfile\ShellEx\IconHandler]
@="{42042206-2D85-11D3-8CFF-005004838597}"