Unreferenced date September 2007 VxD is the device driver model used in Windows 2.1x Microsoft Windows 386 , the 386 enhanced mode of Windows 3.1x Windows 3.x , Windows 9x , and to some extent also by the Novell DOS 7, OpenDOS 7.01, and DR DOS 7.02 and higher multitasker. VxDs have access to the memory of the kernel and all running processes, as well as raw access to the hardware. TOC Design The name VxD is an abbreviation for virtual xxx driver , where xxx is some class of hardware device. It derives from the fact that most drivers had filenames of the form code vxxxd.386 code in Windows 3.1x Windows 3.x . Some examples are vjoyd.386 joystick , vmm.386 memory manager . VxDs usually have the filename extension code .386 code under Windows 3.x and code .vxd code under Windows 95. VxDs written for Windows 3.x can be used under Windows 95 but not vice versa. History Prior to the advent of Windows, DOS applications would either communicate directly with the various pieces of hardware responding to interrupts, reading and writing device memory etc. or go through a DOS device driver . As DOS was not multitasking each application would have exclusive and complete control over the hardware while running. Though Microsoft Windows Windows applications don t often communicate directly with hardware, it was the only way to write Windows drivers, and still is in the real and standard modes of Windows 3.x. Despite the fact that Windows switched from running in real mode to protected mode, direct hardware access and interrupt hooking could still be done because when Windows switched to running ... WDM , VxD device drivers can be used under Windows 98 and Windows Me. VxDs are not usable in Windows ... for them. Using VxD drivers instead of WDM drivers in Windows 9x resulted in advanced ACPI states ... links http win32assembly.online.fr tutorials.html Iczelion s VxD Tutorials Category Device drivers Category Windows components windows stub de VxD es VxD fr VxD ko VxD ja ... more details
A device driver handling a Device driver Virtual device drivers virtual device . VxD , a type of Windows device driver running in 32 bit protected mode. disambiguation ... more details
Other uses System file disambiguation .sys is a filename extension in Microsoft Windows and DOS type operating system . Most tt .sys tt files are real mode device driver s. ref http www.osronline.com article.cfm?article 233 Exactly What Is A Driver? ref Certain files using this extension are not, however MSDOS.SYS and IO.SYS are core operating system files in MS DOS and Windows 9x. The CONFIG.SYS file contains various configuration options as well as specifying what device drivers will be loaded . ref http support.microsoft.com kb 118579 Contents of the Windows Msdos.sys File ref ref http www.dewassoc.com support msdos config sys.htm What is a CONFIG.SYS FILE? ref .sys files can be found in the code C Windows code directory of Windows computers. These files may also be found in the code C Windows WinSxS code folder, particularly in Windows Vista and its successors. ref http www.fileinfo.com extension sys Location of .sys files ref See also VxD References reflist Category Microsoft Windows Sys Category DOS files Sys Category DOS technology Sys Windows stub el .sys ko .sys pt SYS ru .sys sv SYS vi .sys zh .sys ... more details
implemented as a Windows service that enables applications to work with devices. VxD, WDM and Windows ... Me are able to use both WDM and VxD Virtual device driver driver standards. Both drivers models ... provides more features. For example, if a TV tuner card using a VxD driver is able to capture ... improvement over the VxD and Windows NT driver model used before it, has been criticised by driver ... more details
No footnotes date March 2010 32 bit file access refers to the higher performance, protected mode disk caching method introduced in Windows for Workgroups 3.11, which replaced SmartDrive Smartdrv . It bypassed MS DOS and directly accessed the disk, either via the BIOS or preferably 32 bit disk access Windows native protected mode disk drivers . This feature was a backport from the then unreleased Windows 95 , as suggested by Microsoft s advertisements for Windows for Workgroups 3.11 the 32 bit file system from our Chicago project . With the introduction of 32 bit file access and Long File Names in Windows 95, DOS was reduced to the role of a boot loader for Windows. It was implemented using the File Allocation Table Long File Names .28VFAT.2C LFNs.29 VFAT , VCACHE, and IFSHLP.SYS IFSMgr VxD drivers. Also, it should not be confused with 32 bit disk access . Although both technologies are similar, 32 bit disk access also known as FastDisk pre dates Windows for Workgroups 3.11. 32 bit file access provided a 32 bit code path for Windows to directly access the disk bus by intercepting the MS DOS Int 21H services while remaining in 386 protected mode and at CPU speeds, rather than handling the Int 21H services in real mode by MS DOS. 32 bit disk access offers relatively less performance and is less likely to work on many computers than 32 bit file access. 32 bit file access does not need 32 bit disk access. See also 32 bit disk access IFSHLP.SYS these articles should be joined External links http web.archive.org web 20071011012746 http marina.mfarris.com theref files 32bfa.txt MS Windows 32 Bit File Access Meta FAQ http users.exis.net gewkab 32bfafaq.html 32 bit file access FAQs http support.microsoft.com ?id 83325 Explanation of SMARTDRV & 32 bit disk access from Microsoft http support.microsoft.com kb 106275 Windows for Workgroups 3.11 FAQs http pclt.cis.yale.edu pclt OPSYS WFWG311.HTM Category Microsoft Windows file system technology Category Windows disk file systems w ... more details
Third party date April 2012 Infobox software name ProcessOn developer The ProcessOn Team genre Diagramming software license Free Subscriptions website url http www.processon.com ProcessOn is a diagram library and a social network for business process users, established on July 2011. ProcessOn built on parallel computing and distributed storage architect technology. It contains three parts diagram library, social network and free online Diagramming software . Diagram Library Diagrams are categorized in multi dimensions and tagged by owners. ProcessOn use APQC http www.apqc.org process classification framework Process Classification Framework , and support Value Chain Diagram, Event driven Process Chain Diagram, Flowchart Diagram, BPMN Diagram, Venn Diagram and Uncategorized Diagram. Visitor can sort diagrams by time, rating and comments quantity for easy use, and can search diagrams by tags or owners as well. Business Social Network After registered, users will be able to communicate using the social network and draw diagrams using the online editor. The social network include follow people, follow tags, update info, rating and add comments to diagrams. By rating and add comments, the valued diagrams can be find by more people. Once the followed people have any update, or diagrams that contain the followed tags changes, the following user will be notified. This can be set in the user profile setting. Web based Diagram Editor ProcessOn provides a free diagram editor for business users, they can create new diagram on the web, import BPMN2.0 and vxd format files. When multi users edit one diagram at the same time, ProcessOn will merge each modification according to the change timestamp. The default status of a generated diagram is private and others can not see it. Users can add tags, add description, public diagrams to the diagram library, or set password to allow unregristered visitors browse the protected diagram. References http blog.sina.com.cn s blog a19742b101010 ... more details
refimprove date November 2011 The Windows Startup Process is the process by which Microsoft s Microsoft Windows Windows series of operating system s initializes. DOS based Windows Windows 1.x 2.x In Windows versions 1.01 to Windows 386, the system was loaded when WIN.COM was executed. It then loaded win100.bin win200.bin and win100.ovl win200.ovl, along with the configuration settings file WIN.INI . The default shell is the MS DOS Executive . The modules GDI.EXE, KERNEL.EXE and USER.EXE, fonts, and the various device drivers such as comm.drv, mouse.drv, keyboard.drv are incorporated in win100.bin win200.bin and win100.ovl win200.ovl. Windows 3.x 9x In Windows 3.1x Windows 3.x and Windows 9x 95 98 ME , the boot loader phase is handled by MS DOS . During the boot phase, the Autoexec.bat and Config.sys are executed, along with the configuration settings files WIN.INI and SYSTEM.INI . Virtual device drivers are also loaded in the startup process they are most commonly loaded from the registry HKLM System CurrentControlSet Services VxD or from the SYSTEM.INI file. When all system configuration files and device drivers have been loaded, the 16 bit modules, krnl386.exe, gdi.exe, and user.exe, are loaded, then the 32 bit DLLs kernel32.dll, gdi32.dll, and user32.dll are loaded. The 32 bit VxD message server Msgsrv32 starts Mprexe.exe, which is responsible for loading the network logon client such as Client for Microsoft Networks, Microsoft Family Logon or Windows Logon . When a user is logging on to Windows, the startup sound is played, the shell usually Explorer.exe is loaded from the boot section of the SYSTEM.INI file, and startup items are loaded. In all DOS based versions of Windows except ME, it is also possible to load Windows by booting to a DOS prompt and typing win . There are some command line switches that can be used with the Win command with the d switch, Windows boots to safe mode, and with the d n switch, Windows boots to safe mode with networking. The latter ... more details
Yamaha VL synths only had one voice, or two for the original VL 1. Like the DS XG .VxD drivers .... Unfortunately, only the VxD Virtual Device Drivers drivers for pre NT kernel versions ... more details
the VL part only worked on Windows 95, 98, 98SE, and ME, and then only when using . VxD drivers, not . Windows ..., the VL part only worked on Windows 95, 98, 98SE, and ME it emulated a .VxD MIDI device driver ... more details
mode VxD driver Dsound.vxd , allowing direct access to the primary buffer used by the audio hardware ... ref On Windows 98 and Windows Me, WDM audio drivers were preferred but compatibility with VxD ... more details
VxD driver standard, which Windows 98 also supported. The WDM standard only achieved widespread ... VxD standard. ref http support.microsoft.com kb 244601 You cannot use virtual device driver .vxd files common to Windows 98 or Windows 95 drivers with Windows 2000. ref Windows Driver Model ... a VxD device driver, tt NTKERN.VXD tt which implements several Windows NT specific kernel support ..., and the hardware manufacturer or OEM supplied compatible Windows Driver Model WDM drivers, non VxD ... more details
iNAVI K2 Digital Cube iStation T5 APSI LM480 PowerVR Video Cores MVED VXD Apple A4 VXD375 Apple ... i1, M1 WILLCOM D4 Sharp WS016SH Intel Z6xx Lincroft SGX535 VXD VXE Intel GMA600 Atom based CPU ... more details
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