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.NET Forum / Languages / Managed C++ / September 2004How to make the Windows to run a console program during OS startup?
How to make the Windows to run a console program during OS startup, like the Chkdsk program to do when the OS does not shutdown properly? Now I want to run my program instead of Chkdsk during the OS startup, is there a way to do that? Thank you very much! Regards, ZhangZQ You cannot do it instead of Chkdisk, but you can use a native API program in addition to ChkDisk, see http://www.sysinternals.com/ntw2k/info/native.shtml . Note this does not use the Win32 API so you are going to have to write a custom application for this, and be aware that much of this API is officially undocumented and subject to change.  SignatureDon Burn (MVP, Windows DDK) Windows 2k/XP/2k3 Filesystem and Driver Consulting Remove StopSpam from the email to reply > How to make the Windows to run a console program during OS startup, like the > Chkdsk program to do when the OS does not shutdown properly? Now I want to [quoted text clipped - 5 lines] > Regards, > ZhangZQ Don Burn, That is the very useful information for me, thank you very very much! Regards, ZhangZQ > You cannot do it instead of Chkdisk, but you can use a native API program > in [quoted text clipped - 17 lines] >> Regards, >> ZhangZQ Don Burn, I tried that program and it can display "hello world" in the blue screen, very good! I haven't installed the DDK now so I still can't compile that program, I have a question now, is it possible to call the Win32 API CreateFile, ReadFile, WriteFile in that program? Regards, ZhangZQ > You cannot do it instead of Chkdisk, but you can use a native API program > in [quoted text clipped - 17 lines] >> Regards, >> ZhangZQ Oh, I think CreateFile, ReadFile, WriteFile must can't be called at that time, and I found there is a NtOpenFile in NTDLL.dll, but can't find the definition of that function so I disassembled that function and found it call IoCreateFile, Ok, there are 2 solution now, but I don't know if it is feasible, 1. Replace all the IO function that use the Win32 API with the DDK IO function. 2. I also found LdrLoadDll in NTDLL.dll, is it possible to load the module that implement the CreateFile, then there is no need to modify my existing program. What is your suggestion? Thank you very much! Regards, ZhangZQ > Don Burn, > [quoted text clipped - 28 lines] >>> Regards, >>> ZhangZQ If there is a Ntxxxx function documented in the windows DDK (or MSDN), the prototype will be the same in ntdll.dll as in ntoskrnl.exe. This is because ntdll.dll ntxxx functions all call through to the same functions in ntoskrnl.exe. check here http://undocumented.ntinternals.net/ for documenation on the ntdll.dll functions you want to use. Wah!! GREAT!!! Thank you very much! Regards, ZhangZQ > check here > http://undocumented.ntinternals.net/ > for documenation on the ntdll.dll functions you want to use. There should be a equivalent call to NtOpenFile named as ZwOpenFile() in ntdll.dll. Native applications generally can call only API's from ntdll.dll and can also send IOCTL's to drivers to get things done. SignatureCheers Check Abdoul [VC++ MVP] ----------------------------------- > Oh, I think CreateFile, ReadFile, WriteFile must can't be called at that > time, and I found there is a NtOpenFile in NTDLL.dll, but can't find the [quoted text clipped - 45 lines] > >>> Regards, > >>> ZhangZQ
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