[RESOLVED] Save to BIOs Possible?

[wiz126]

i g2g but ill check this tread later,anyway, Is there a way to save a text to bios and get it when my app loads?

the text is no less then 20 cher. and 33max so its not big, but posible?


simillar to how windows save the OS username and password to the bios

[Hack]

A long time ago I stopped telling some that can't do that with VB, but, I have never seen any examples of writing to BIOS from VB.

[wiz126]

where can i find info on weather its even posible?

The reson i need it because the app that i am working onb now (can't post due to disclosure agreement), starts insted of the original windows logon screen, when a user login (using my app insted of the OS defult) he will be send to windows - my app will monitor what he does and what privileges he got depends on the user level

[dreamvb]

hi, best place it to look at some ASM forums is your best bet. How ever I did once find something that can wipe the CMOS password but this was in Delphi.

[Hack]

dreamvb is right. The only way you are going to accomplish something like this with Vb is to be making calls to an ASM or C .dll library file.

[Harsh Gupta]

dreamvb is right. The only way you are going to accomplish something like this with Vb is to be making calls to an ASM or C .dll library file.

yes...........but Delphi is more preferred for such purposes!!!

dont know abt delphi myself, but a friend of mine told me this!!

[wiz126]

i know c and c++ what would be better to use?

[Harsh Gupta]

i know c and c++ what would be better to use?

well u can use C/C++ if u know ASM programming..........dont know abt it myself but if u are not so strong in ASM then probably use Delphi.

if u still feel that u shud use C/C++, then try googling ASM programs related to BIOS........u may get some good results!!!

[moeur]

I'ts not clear to me that you need to access the BIOS for your app.
Windows saves the Username and password to BIOS????

[wiz126]

I'ts not clear to me that you need to access the BIOS for your app.
Windows saves the Username and password to BIOS????

indeed it does. ill give you an example.
if you open your computer (actual box) and take the cirular buttery out wait 12 sec and put it back in. now start your computer. Walla your windows password was deleted and so is the clock so you will have to set your clock agine

where do you think windows stors the user password? and why do you think the computer clock is not off time if you shut it for few houres. there is a buttery connected to the bios - there the buttery sends small amounts of enegry just enugh to keep the memory not deleted so the clock will not loos its time and the user got his password saved

[chemicalNova]

Dare I say it; C wouldn't be able to accomplish this. With a very VERY ugly hack, it might be possible. The best way to do anything remotely like this, would be ASM, or QBasic. QBasic can push to the stack and a few (anywhere? been a while) places in memory.

I think a few ASM tutorials are required.

chem

[dglienna]

I don't think that's true. How could you log into Windows after you flashed your BIOS? I have done that before, and had no problem logging in.

[moeur]

I also don't believe this, when my battery dies are you saying all my users will no longer be able to log onto their accounts?

[wiz126]

I also don't believe this, when my battery dies are you saying all my users will no longer be able to log onto their accounts?

oh no that gets backed up. your users are writen in so meny places its not funny. the password isn't. so you will have the the users avelible, but they will have no password

i got it to work anyway from c++ cutom code my friend made me so i ok.

[Harsh Gupta]

i got it to work anyway from c++ cutom code my friend made me so i ok.

can u share it with others on forum??

[hYph3n]

indeed it does. ill give you an example.
if you open your computer (actual box) and take the cirular buttery out wait 12 sec and put it back in. now start your computer. Walla your windows password was deleted and so is the clock so you will have to set your clock agine

where do you think windows stors the user password? and why do you think the computer clock is not off time if you shut it for few houres. there is a buttery connected to the bios - there the buttery sends small amounts of enegry just enugh to keep the memory not deleted so the clock will not loos its time and the user got his password saved

first of all i want to clear a couple of things.

• The password that BIOS use to store is system password, resetting the batter (the way you describe) will reset system password and not the window password. Window will still prompt you for username and password (i am talking about winXP n win2K).
  
  System password, is the password that is prompt right after the POST.
  
• Window use *.sam file to save it's password if you are going to log on LOCALLAY, or it contains multiple storage if you are using Network Logon.

there could be 2 options for your problem.

• If you do wish to write to CMOS, you must uset C language. My friends did all this using 16-BIT C, there project was to give a GUI so that user can change the CMOS setting while running windows, and they did all that .. successfully.
  
• The alternate could be that, use the window domain to log on, and after it, your application (which must be running as serivce) take control, prompt for the username and password again ... if it is authorized then its ok, else you can send system command to log off.