[krbdev.mit.edu #2882] Windows 2003 SP1 ktpass.exe generate keytab files fail to load with 1.4

[Jeffrey Altman via RT]

I am resolving this ticket.  The problem with the environment variable
is due to the use of getenv() vs GetEnvironmentVariable().  We need to
move to using the non-C RTL version which can only see the contents of
the RTL state and not that of the process as a whole.