private static string FindInternetExplorer()
{
const string strIEDef = "SOFTWARE\\Clients\\StartMenuInternet\\IEXPLORE.EXE\\shell\\open\\command";
const string strIEWow = "SOFTWARE\\Wow6432Node\\Clients\\StartMenuInternet\\IEXPLORE.EXE\\shell\\open\\command";
for (int i = 0; i < 6; ++i)
{
RegistryKey k = null;
// https://msdn.microsoft.com/en-us/library/windows/desktop/dd203067.aspx
if (i == 0)
{
k = Registry.CurrentUser.OpenSubKey(strIEDef, false);
}
else if (i == 1)
{
k = Registry.CurrentUser.OpenSubKey(strIEWow, false);
}
else if (i == 2)
{
k = Registry.LocalMachine.OpenSubKey(strIEDef, false);
}
else if (i == 3)
{
k = Registry.LocalMachine.OpenSubKey(strIEWow, false);
}
else if (i == 4)
{
k = Registry.ClassesRoot.OpenSubKey(
"IE.AssocFile.HTM\\shell\\open\\command", false);
}
else
{
k = Registry.ClassesRoot.OpenSubKey(
"Applications\\iexplore.exe\\shell\\open\\command", false);
}
if (k == null)
{
continue;
}
string str = (k.GetValue(string.Empty) as string);
k.Close();
if (str == null)
{
continue;
}
str = UrlUtil.GetQuotedAppPath(str).Trim();
if (str.Length == 0)
{
continue;
}
// https://sourceforge.net/p/keepass/discussion/329221/thread/6b292ede/
if (str.StartsWith("iexplore.exe", StrUtil.CaseIgnoreCmp))
{
continue;
}
return(str);
}
return(null);
}
