I have a Kerberos enabled version of PuTTY which works fine on XP using
both KfW 3.1.0 and 3.2.2. It also works fine on Vista using KfW 3.1.0.

But on Vista using KfW 3.2.2, plink triggers a Vista error popup with the
following detailed info.

Is this a problem with KfW? Or plink? Or Vista?

Problem signature:
Problem Event Name: APPCRASH
Application Name: plink.exe
Application Version: 0.0.0.0
Application Timestamp: 442da71c
Fault Module Name: ntdll.dll
Fault Module Version: 6.0.6001.18000
Fault Module Timestamp: 4791a7a6
Exception Code: c0000005
Exception Offset: 000659c3
OS Version: 6.0.6001.2.1.0.256.16
Locale ID: 1033
Additional Information 1: 0278
Additional Information 2: fca079b4ae336117388507dcafefd8fe
Additional Information 3: ed28
Additional Information 4: e4da8b766cc83f8ab38503727fc11ef0