Software & Application Miscellaneous: ZwQueryKey with not opened handle?

Keywords & Tags: zwquerykey, opened, handle, software, application

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• ZwReadFile slows after a few hundred MBs

  I've got a thread that processes IRP_MJ_READ/WRITEs. From the code that follows, if I use pReadBuffer with ZwReadFile then everything is smooth but if I simply use pCurrentAddress then my whole system slows to a crawl after a few hundred megs. Can anyone shed some light? Writes don't seem to be...

• ZwReadFile returns STATUS_INVALID_HANDLE in DriverIOControl

  I have written a device driver and I have a problem with ZwCreateFile and ZwReadFile. ZwReadFile always returns STATUS_INVALID_HANDLE in DriverIOControl. The DriveEntry opens a file with ZwCreateFile. #pragma alloc_text(INIT,DriverEntry) #pragma alloc_text(PAGE,DriverCreateClose) #pragma alloc_text...

• ZwReadFile failed on Vista with files on udf formated DVD

  The following snippet shows some calls to ZwCreateFile and ZwReadFile which work fine on 2000,2003, XP. But on Vista ZwReadFile will fail with STATUS_INVALID_PARAMETER. It only fails, if the file is located on an UDF formated DVD. If file is located on a physical disk, USB device or CD, everything...

• ZwQueryValueKey

  Hello, I'm trying to query the computer name from the following registry key: L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\ComputerName\\Act iveComputerName The key is: ComputerName I can successfully pull this value out of the registry. However, it is in the following format:...

• ZwQueryDirectoryFile

  Question about ZwQueryDirectoryFile: The declaration of this funct is def'd as ....OUT PVOID FileInformation.... and FileInformation is said to be a pointer to a buffer... Should not this be the address of a pointer to a buffer... The returned buffer is to be freed with EXFreePool. I guess...

Software & Application Miscellaneous New questions

• ZwQueryInformationFile(..FileAlignmentInformation..) always returns FILE_WORD_ALIGNMENT

  GreetingsI'am assuming ZwQueryInformationFile(..FileAlignmentInformation..) to always return FILE_BYTE_ALIGNMENT(0) for files opened without FILE_NO_INTERMEDIATE_BUFFERING and FILE_512_BYTE_ALIGNMENT(0x1ff) for files opened with FILE_NO_INTERMEDIATE_BUFFERING on sector size = 512but for me the...

• ZwQueryInformationFile Returns Wrong File Size

  I am using ZwQueryInformationFile to obtain the size of a binary file that contains firmware. Problem is that 3 of the files return the correct size, however two files return a file size off-by-one (-1). So currently I am just doing a cheap hack. I use StandardInformation.EndOfFile.LowPart to...

• ZwQueryInformationFile

  Hello I'm using ZwQueryInformationFile to retreive a file name from a file handle. So i use the FileNameInformation class. Unfortunately the filename always begins with / (for example /Windows). My question is: how am i supposed to make a difference between C:\Windows and D:\Windows?...

• ZwOpenFile issue

  I have a filter driver that filters the UDF. When the UDF mounts the filter looks for certain files on the DVD to verify if it is something that I want to "filter". I use ZwOpenFile in the SetupCallback routine. This works fine except for one problem. If the last disc to be in the drive was one...

• ZwMapViewOfSection() fails in free build driver on Windows XP x6

  &SectionHaHi, I used shared memory object to share memory between multiple processes and a kernel mode driver. The application created the shared object using CreateFileMapping() and the driver maps it using ZwMapViewOfSection(). Application in this case is a 32bit application. Driver function...

• ZwLockVirtualMemory Load-time error.

  Hello, I couldnt find the solution to this anywhere. I am writing a kernel mode driver that needs to lock a particular page of an user-mode process (since I dont have the source for this, I can't use API calls from within the user-space process) so that it doesn't get paged out. I am u...

• ZWiki with Zope 2.7, OS X Server 10.4.x

  I installed ZWiki by unpacking and putting the folder into my ZopeProducts directory. I restarted Zope and ZWiki shows up as a validproduct. However, when I actually try to add a ZWiki from the "selecttype to add" pulldown menu, I get this error:Time2006/06/22 09:05:41.911 GMT-4User Name (User I...

• zwiki users - own color text?

  hi allI've had a search thro the mailing list, but can't find out how to set up zwiki so that each user's contribution to a wiki automatically shows up in a particular color, or failing that how the user themselves can change the color of their contributioni have access to a serve...

• zwiki users - own color text?

  MessageFrom: "Simon Michael" <simon (AT) joyful (DOT) com>To: zope (AT) zope (DOT) orgSubject: [Zope] Re: zwiki users - own color text?Date: Fri, 20 2006 11:11:21 -0700That sounds not so easy. Do you mean just comments, or all editsall edits.:-(we're wanting to use a wiki to discuss t...

• Zwiki contributor policy update

  Hi all!I'm slightly burned out and bored with certain areas of Zope 2 Zwikidevelopment. I think the product will provide some value for a whileyet, and it's not too late to shake things up and make a bigger splash.If we don't do this during the period of Zwiki & Zope 2's rele...

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