correct ismbblead implementation

[Vijay Kiran Kamuju]

Hi,

we can use the following registrykey

HKEY_LOCAL_MACHINE\
System\CurrentControlSet\Control\NLS\CodePage\EUDCCodeRange

to get the correct key range and also for correct implementation of
ismbblead in msvcrt

its documented here
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/intl/unicode_3rfp.asp

Thanks,
Vijay