I found that in regedit "shell" was missing for HTTP and HTTPS. Please merge the following regedit definitions.
In Windows 7, you may specify a default program for HTTP and HTTPS protocols (not the file type).
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\http\shell]
[HKEY_CLASSES_ROOT\http\shell\open]
[HKEY_CLASSES_ROOT\http\shell\open\command]
@="\"C:\\Program Files\Internet Explorer\iexplore.exe\" -nohome"
[HKEY_CLASSES_ROOT\http\shell\open\ddeexec]
@=hex(2):22,00,25,00,31,00,22,00,2c,00,2c,00,2d,00,31,00,2c,00,30,00,2c,00,2c,\
00,2c,00,2c,00,00,00
"NoActivateHandler"=""
[HKEY_CLASSES_ROOT\http\shell\open\ddeexec\Application]
@="IExplore"
[HKEY_CLASSES_ROOT\http\shell\open\ddeexec\Topic]
@="WWW_OpenURL"
[HKEY_CLASSES_ROOT\https\shell]
[HKEY_CLASSES_ROOT\https\shell\open]
[HKEY_CLASSES_ROOT\https\shell\open\command]
@="\"C:\\Program Files\Internet Explorer\iexplore.exe\" -nohome"
[HKEY_CLASSES_ROOT\https\shell\open\ddeexec]
@=hex(2):22,00,25,00,31,00,22,00,2c,00,2c,00,2d,00,31,00,2c,00,30,00,2c,00,2c,\
00,2c,00,2c,00,00,00
"NoActivateHandler"=""
[HKEY_CLASSES_ROOT\https\shell\open\ddeexec\Application]
@="IExplore"
[HKEY_CLASSES_ROOT\https\shell\open\ddeexec\Topic]
@="WWW_OpenURL"