Hi!, Pass-The-Hash Toolkit v1.1 is available here: Source: http://oss.coresecurity.com/pshtoolkit/release/1.1/pshtoolkit_src_v1.1.tgz Binaries: http://oss.coresecurity.com/pshtoolkit/release/1.1/pshtoolkit_v1.1.tgz This version basically works best with German/French versions of WinXPSP2, and also with Windows Server 2003. If you had problems with any of these with the previous version, please try this one. Now, there's basically a -B switch that tries to find the necessary addresses in runtime, and a bigger database of possible addresses. If you have issues, PLEASE let me know!. and thanks to all the people that sent emails and gave me the necessary feedback to come up with a solution to their pshtoolkit-related problems :). WHATSNEW.What's new?: -Improved support for windows xpsp2 german/french, windows 2003 sp1/sp2, both for IAM.EXE and WHOSTHERE.EXE -Added to IAM.EXE and WHOSTHERE.EXE the -B switch. If IAM.EXE or WHOSTHERE.EXE is not working in your configuration, please run the tools again specifying -B at the end. The -B option will try to find, using 'heuristics', the addresses the tools need to do what they do. If you are still having issues, please let me know, I expect people to have issues because the addresses vary from OS version to OS version. Note for Windows Server 2003 users: -if you run IAM.EXE and it ends as expected, as If it had worked, but then you run WHOSTHERE.EXE and the credentials did not change, do the following: -start a cmd.exe using runas, for example: runas /user:administrator cmd.exe -and in the new console run IAM.EXE, and then WHOSTHERE.EXE to verify. And now it should work. It seems that sometimes you need a new session different than the interactive session for LSASS.EXE to accept the modifications to the credentials in memory. If you are logging to the machine remotely using psexec/Remote Desktop etc this does not to occur (at least, this is what I observed), I had troubles like this when logging interactively to the server. Also after you run 'runas', running IAM.EXE in a regular CMD.EXE shell will start working. Don't take any of this as a precise explanation of what's going on, this is just what I observed and a way to work around it. I'll analyze what's really going on in the future..