Zebex Industries Port Devices Driver Download For Windows 10

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PortTalk Windows NT I/O Port Device Driver 2.2

A problem that plagues Windows NT/2000 and Windows XP, is it's strict control over I/O ports. Unlike Windows 95 & 98, Windows NT/2000/XP will cause an exception (Privileged Instruction) if an attempt is made to access a port that you are not privileged to talk too. Actually it's not Windows NT that does this, but any 386 or higher processor running in protected mode.
Accessing I/O Ports in protected mode is governed by two events, The I/O privilege level (IOPL) in the EFLAGS register and the I/O permission bit map of a Task State Segment (TSS). Under Windows NT, there are only two I/O privilege levels used, level 0 & level 3. Usermode programs will run in privilege level 3, while device drivers and the kernel will run in privilege level 0, commonly referred to as ring 0. This allows the trusted operating system and drivers running in kernel mode to access the ports, while preventing less trusted usermode processes from touching the I/O ports and causing conflicts. All usermode programs should talk to a device driver which arbitrates access. The I/O permission bitmap can be used to allow programs not privileged enough (I.e. usermode programs) the ability to access the I/O ports. When an I/O instruction is executed, the processor will first check if the task is privileged enough to access the ports. Should this be the case, the I/O instruction will be executed. However if the task is not allowed to do I/O, the processor will then check the I/O permission bitmap.
The I/O permission bitmap, as the name suggests uses a single bit to represent each I/O address. If the bit corresponding to a port is set, then the instruction will generate an exception however if the bit is clear then the I/O operation will proceed. This gives a means to allow certain processes to access certain ports. There is one I/O permission bitmap per task.
Revision History
6th April 2002 - Version 2.2.
Fixed a debug message typo in the IoExample.
13th January 2002 - Version 2.1, tested on Windows 2000 SP2 and Windows XP RTM.
Added uninstall.exe to deal with older V1.x versions of PortTalk.
12th January 2002 вЂ“ Version 2.0, tested on Windows 2000 SP2 and Windows XP RTM.
Self installs driver for ease of use.
Improved type checking.
Distributed with IoExample code showing use of inportb/outportb() inp/outp() macros and IOCTL calls.
6th September 2001 вЂ“ Version 1.02
Fixed .reg file after previous fix broke Windows 2000 Support. Now supports Windows NT/2000/XP.
26th June 2001 вЂ“ Version 1.01
Fixed .reg file to support both Windows 2000 and Windows NT4.
13th March 1999 вЂ“ Version 1.0 first public release for Windows NT4.
When installing PortTalk V2.x on machines with an older version of V1.x, the existing driver must be un-installed. Simply run the uninstall.exe contained within the PortTalk package with administrator privileges. After the old driver has been removed, running allowio.exe or IoExample.exe will detect the absence of PortTalk and re-install the new driver.
Additionally, the driver can be removed manually. This is only recommended for advanced users. Either
-Replace your old porttalk.sys with the new version and reboot.
-Delete the HKEY_LOCAL_MACHINEsystemcurrentcontrolsetservicesporttalk key and reboot.
-Use the Windows NT Device Driver Installer to stop and remove the PortTalk Driver.
Примечание: Ссылка 'скачать' может вести как непосредственно на файл, так и на сайт производителя, на котором Вы можете найти нужный файл.
Это связано с тем, что некоторые производители не позволяют размещать прямые ссылки на файлы.

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Want to update the drivers to the latest version for HP, Dell, ASUS or any other computer brand? Are you experiencing the Windows 10 driver issues? Have no sound your computer? Cannot find the device driver in device manager? You may be very acquainted with the problems, but sometimes it seems that you are not skillful enough to complete it all on your own.

So to help you download, install, and update hardware drivers for Windows 10, here come the several efficient ways, which can be divided into two aspects: manually and automatically. In other words, it consists of using Windows built-in tools, such as device manager and Windows update, and the third-party driver software.

Methods:

Method 1: Update Windows Drivers in Device Manager

As a built-in managerial tool, device manager is to manage device driver, it is no doubt that you can use it to update drivers for Windows 10.

1: Open Device Manager in the search box.

2: Right-click the device driver to Update Driver Software. Here choose to update Realtek HD audio driver under Sound, video, and game controllers.

3: Click Search automatically for updated driver software.

Then Windows will automatically search for your computer and the internet for the latest driver software.

4: Windows search for the device driver online and install it for you.

It is a way using device manager to update the drivers for Windows 10, you can download the latest audio driver, touchpad, mouse, and any other software driver in it.

Method 2: Update All Drivers Automatically

This is a way of automatically downloading and updating drivers for Windows 10, so it can also help you solve a great many drivers issues.

Driver Booster is a professional and safe tool offered to you to update drivers, it concludes more than 8,100,000 million device driver database. Furthermore, it can download and update drivers for you within several clicks in several minutes.

You can Download, install and run Driver Booster on your computer.

1: Click Scan. Then Driver Booster will search your PC for the outdated, missing or corrupted drivers, including IDE HD audio driver.

Here you can know how many drivers can be updated and missing.

2: Update Now. After that, Driver Booster will download and update all the drivers.

Though it is a third-party software, it is absolutely safe for your computer. So you can use it to solve different driver issues, for example, there is no sound from NIVID High Definition audio.

Method 3: Update Drivers from the Manufacturer’s Website

If you cannot find the right driver in the Microsoft built-in tool, you can turn to the Manufacturer’s website to download the latest drivers for Windows 10. You will find it varies for a different brand of computer, but most of the drivers can be found in the Support of the official site, and you can download the driver under Software and drivers after you entered the model of your PC.

There are some software drivers you should download from the Manufacturer’s site: video, audio, Network, chipset and touchpad drivers.

So you can download the Realtek High Definition Audio driver, Realtek card reader and many other Realtek drivers from the Reatlek Manufacturer’s website. If you have not enough computer skills or knowledge, you can go ahead to the automatic way.

Method 4: Update Drivers in Windows Update