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Maximum password length Jonathan Gilligan11-Dec-01 5:02 Jonathan Gilligan 11-Dec-01 5:02  Does anyone know if it's possible to increase the maximum password length for user accounts on NT to more than 14 characters? Re: Maximum password length moliate12-Dec-01 0:18 moliate 12-Dec-01 0:18  You really want to make it hell to log in for your users, don't you? Anyway, I don't think it is possible. NT acutually keeps two separate hashes: LanMan hash and NT hash. I guess the limitation is in the LM hash. LM breaks the password into two 7-byte chunks, that are separatly checked against the SAM. For that reason, the first seven characters should not be "related" to the next seven. For example, "QWERTYQWERTY" is broken into "QWERTYQ" and "WERTY__", and if a hacker finds eiter one guessing the whole password is rather easy. You could also place a non-printable chars in both halves to make it harder to guess, like '(NUM LOCK) ALT-255'. Hope this helps /moliate Re: Maximum password length Jonathan Gilligan16-Dec-01 7:40 Jonathan Gilligan 16-Dec-01 7:40  moliate wrote: You really want to make it hell to log in for your users, don't you? I said the maximum, not the minimum. The reason is that I find it much easier to choose passwords from random phonemes via a Markov chain rather than by choosing random characters. 10 random elements from a third-order Markov chain must have several dozen characters to achieve the same entropy as 10 random alphanumeric/symbol characters, but can be more easily remembered because it can be pronounced with sounds consistent with the user's native language. Those who want to use this system for choosing truly random passwords find that the time it takes to type in 30 characters is significantly less than the time it takes to look up an 8-character password in a secure password-storage device. Thanks for the explanation of the NT password mechanism. I may need to accelerate the move to all-Win2K systems just because of this security problem! Re: Maximum password length moliate16-Dec-01 10:41 moliate 16-Dec-01 10:41  Ops. Sorry about the misreading.. Anyway, I think Microsoft has provided some kind of Hotfix to turn LM authorization off if you don't need it. Check the sequrity site for that. Still don't know if there is a way to increase password length.. /moliate /moliate File properities on Win2k moliate11-Dec-01 2:36 moliate 11-Dec-01 2:36  Running Explorer under Win2k, you can find some additional information on most files, like Title, Author, Comments and so on. Does anyone know where this information is stored? I try to find out if this is a property of ntfs or Windows, and if information is conserved when transfered to another computer... Thanks. /moliate Re: File properities on Win2k Michael P Butler11-Dec-01 4:13 Michael P Butler 11-Dec-01 4:13  Which files? I'm familiar with that information in Office document files such as .DOC and .XLS. In this case the information is contained in the files themselves and will be transferred from one computer to another. Michael Re: File properities on Win2k moliate11-Dec-01 5:20 moliate 11-Dec-01 5:20  When I right-click on any file, choose Properities, select the propertytab Summary, I find some fields where I can enter data. This data is preserved if the file is copied or moved, and don't change the content of the file. Was just wondering how this was done. BTW, I don't have an English version of Win2k, so the names I used above might be a bit garbled through translation.. /moliate Re: File properities on Win2k Michael Dunn11-Dec-01 8:11 Michael Dunn 11-Dec-01 8:11  That info is stored in the file itself, using a second stream. Streams are supported on NTFS only, so as long as the file stays on NTFS volumes, the info will be preserved. --Mike-- http://home.inreach.com/mdunn/ Help! Help! I'm being repressed!! your with and Sonork - 100.10414 AcidHelm Re: File properities on Win2k moliate12-Dec-01 0:32 moliate 12-Dec-01 0:32  Thanks for the reply! It helped me to search around a bit to find some more info. One thought bugs me though - wouldn't this feature make it easier to hide viruses? How could I find all the named streams contained in a file? Is there a tool to do this? I doesn't seem like the Windows API has direct support for named streams.. /moliate Re: File properities on Win2k Peter Weyzen29-Jan-02 7:11 Peter Weyzen 29-Jan-02 7:11  Tell me if I am barking up the wrong tree here. But with the advent of COM and OLE and stuff like that - they created a new file format called the "DOCFILE". A DOCFILE is a filesystem within a file containing storages (like a directory) and streams (like a file). To use these, you need to start looking at the COM class IStorage. This properties information you are looking for is contained within a stream in the root of the file. I don't recall the name or the format of the file, but it's there... -p P.S. This is not supported on NT or NTFS only. This is in all COM supporting versions of windows. Re: File properities on Win2k Giles29-Jan-02 8:09 Giles 29-Jan-02 8:09  Not so much viruses, but you can hide data, that will not appear in the files size. A file can have a length of 0 bytes but could contain data in one of the other streams, which would not show up. I remember a freind doing a course on Win 2000 admin, and this police guys face went pale when the tutor showed them how to hide data in this way. Giles Re: File properities on Win2k Michael S. Scherotter27-Feb-02 12:54 Michael S. Scherotter 27-Feb-02 12:54  What are the APIs for accessing these streams? Michael S. Scherotter Lead Software Architect Tartus Development, Inc. Re: File properities on Win2k Tim Smith27-Feb-02 13:08 Tim Smith 27-Feb-02 13:08  Any of the standard API (i.e. CreateFile) "mytextfile.txt:stream_name_1" is the name of "stream_name_1" in the file "mytextfile.txt". MSDN Info Tim Smith I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk? Re: File properities on Win2k Michael S. Scherotter27-Feb-02 13:07 Michael S. Scherotter 27-Feb-02 13:07  Thank you. How can you enumerate the streams on a file? Michael S. Scherotter Lead Software Architect Tartus Development, Inc. XP Question fd975010-Dec-01 22:12 fd9750 10-Dec-01 22:12  Hi, I will soon install XP on one of our machines (probably mine). Has anyone been using Visual studio 6.0 on XP ? If so, did it work as before ? For the moment I do not think I will upgrade to a higher version. If version 6.0 works I will keep on using it for a while. Also, I am using a legacy compiler for the 8051 processor. It is essentially DOS based but I have integrated it with Visual studio 6 and it is working well. Anyone have any experience with running DOS programs under XP ? To clarify, the DOS applications are just plain vanilla: to activate you type a command line with some arguments and during + after running you get some simple text output. Just wondering if under XP you can still do that. Any help/comments much appreciated. regards, Filip Re: XP Question Michael P Butler10-Dec-01 22:36 Michael P Butler 10-Dec-01 22:36  I've been using Visual Studio 6 SP5 for about 55 days on XP now. (I know the number of days because XP keeps reminding me I have x days left to activate) I've not had any major problems. There have been a few unexpected crashes but I had plenty of those on 2000 too. Michael Re: XP Question Matt Newman11-Dec-01 16:05 Matt Newman 11-Dec-01 16:05  I haven't really had any crashes but I can't seem to debug anything. -Matt Newman -Matt Newman WinExec(...)?? Rickard Andersson2010-Dec-01 11:58 Rickard Andersson20 10-Dec-01 11:58  When I try to run an application with WinExec it will not do what I want it to do!! WinExec(m_Path,SW_SHOW); m_Path is a varible of CString and contains the return value from FileDLg.GetPathName() (FileDialog is a CFileDialog). Isn't this the right way? The app does not run... HELP! SHOW ME HOW!? ------------------------------ ©0d3 ©®4©k3® - That's me! ------------------------------ More info, please Ravi Bhavnani10-Dec-01 12:29 Ravi Bhavnani 10-Dec-01 12:29  Try using CreateProcess() instead. Perhaps the file name has embedded blanks which are causing problems? It's hard to offer help without specific information. I'm not sure what you mean by "it will not do what I want it to do!!". /ravi "There is always one more bug..." ravib@ravib.com http://www.ravib.com Re: More info, please Rickard Andersson2010-Dec-01 21:20 Rickard Andersson20 10-Dec-01 21:20  Stupid me! This is what I want it to do: Run that application that 'm_Path' contains (full path to it) ------------------------------ ©0d3 ©®4©k3® - That's me! ------------------------------ Re: More info, please Ravi Bhavnani11-Dec-01 1:50 Ravi Bhavnani 11-Dec-01 1:50  Yes, I assumed that. But what status does the function return? /ravi "There is always one more bug..." http://www.ravib.com ravib@ravib.com Re: More info, please Rickard Andersson2011-Dec-01 3:44 Rickard Andersson20 11-Dec-01 3:44  Ok, now I get o as return value. But when I test the string that I get from the registry it does not contain any characters! :/ If I open the registry editor I can see the string with path but when I try to ge it it obviously wont return right value... hm... ------------------------------ ©0d3 ©®4©k3® - That's me! ------------------------------ Re: More info, please Rickard Andersson2011-Dec-01 4:03 Rickard Andersson20 11-Dec-01 4:03  Oh man! I feel so painful!! The error was that when I read from the registry. I read wrong folder! DAMN ME! ------------------------------ ©0d3 ©®4©k3® - That's me! ------------------------------ Re: WinExec(...)?? Michael P Butler10-Dec-01 22:38 Michael P Butler 10-Dec-01 22:38  Well WinExec is a superceded function but I've not had any issues with it. What is the return value from the function. This should give you a clue to why it is failing. Michael creating bootable floppy disk on W2K Stephane Routelous9-Dec-01 11:50 Stephane Routelous 9-Dec-01 11:50  Hello, I've got W2K ( only ) and I want to update the bios of my mainboard. In order to do that, I need to make a boot disk. I know that we cannot do that on W2K ( format a: /s ). So I take an old W98 boot disk, and tried the "format a: /s" but it doesn't work ( no idea why. I could do a "format c: /s" but not on a floppy disk). Any idea or help to make a bootable floppy disk on W2K ? Thanks in advance, Stephane "It is ridiculous to claim that video games influence children. For instance, if PacMan affected kids born in the eighties, we should by now have a bunch of teenagers who run around in darkened rooms eating pills while listening to monotonous electronic music."

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