SCSI Pass-Through Direct
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SCSI Pass-Through Direct
SCSI Pass Through Direct (SPTD) is a proprietary device driver and application programming interface (API) developed by Duplex Secure Ltd. that provides a new method of access to SCSI storage devices. The SPTD API is not open to the public. Uses SPTD is used by Daemon Tools and Alcohol 120%. It is also utilized in PowerArchiver Pro 2010 (v11.60+); however, a configurable option is available to disable it. It is known to be incompatible with kernel-mode debugging including WinDbg and Microsoft's other command line debuggers as well as SoftICE. Further, certain versions of the freeware optical media burning software ImgBurn will issue a warning, "SPTD can have a detrimental effect on drive performance", if the application detects that SPTD is active or installed. ConeXware, Inc. (the maker of PowerArchiver) claims that in their internal testing, SPTD improved optical drive performance by up to 20 percent in comparison to the "old school" SCSI Pass Through Interface. See al ...
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Windows 2000
Windows 2000 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses. It was the direct successor to Windows NT 4.0, and was Software release life cycle#Release to manufacturing (RTM), released to manufacturing on December 15, 1999, and was officially released to retail on February 17, 2000. It was Microsoft's business operating system until the introduction of Windows XP Professional in 2001. Windows 2000 introduced NTFS 3.0, Encrypting File System, as well as basic and dynamic disk storage. Support for people with disabilities was improved over Windows NT 4.0 with a number of new Assistive technology, assistive technologies, and Microsoft increased support for different languages and Locale (computer software), locale information. The Windows 2000 Server family has additional features, most notably the introduction of Active Directory, which in the years following became a widely used directory service in business environmen ...
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Daemon Tools
DAEMON Tools is a virtual drive and optical disc authoring program for Microsoft Windows and Mac OS. Overview DAEMON tools was originally a successor of ''Generic SafeDisc emulator'' and incorporated all of its features. The program claims to be able to defeat most copy protection schemes such as SafeDisc and SecuROM. It is currently compatible with Windows XP, Windows Vista, Windows 7, Windows 8, and Windows 10. DAEMON Tools has a special mode for proper operation of copies of discs with advanced protection (SafeDisc, SecuRom and LaserLock, CDCOPS, StarForce and Protect CD), which are used on some discs with games. Editions Six editions of the product exist: Ultra, Lite, Pro Standard, Pro Advanced, Net and DT for Mac. A feature comparison is given below. Also, company provides two additional solutions for the data storage organization: DAEMON Tools USB 2 that allows sharing different types of USB devices between remote workstations and DAEMON Tools iSCSI Target 2 – a cross ...
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Microsoft Developer Network
Microsoft Developer Network (MSDN) was the division of Microsoft responsible for managing the firm's relationship with developers and testers, such as hardware developers interested in the operating system (OS), and software developers developing on the various OS platforms or using the API or scripting languages of Microsoft's applications. The relationship management is situated in assorted media: web sites, newsletters, developer conferences, trade media, blogs and DVD distribution. Starting in January 2020, the website is fully integrated with Microsoft Docs. Websites MSDN's primary web presence at ''msdn.microsoft.com'' is a collection of sites for the developer community that provide information, documentation, and discussion that is authored both by Microsoft and by the community at large. Recently, Microsoft has placed emphasis on incorporation of forums, blogs, library annotations and social bookmarking to make MSDN an open dialog with the developer community rather t ...
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SCSI Pass Through Interface
SCSI Pass Through Interface (SPTI) is an application programming interface (API) accessing a SCSI device. It is developed by Microsoft Corporation and is part of the Windows NT family of operating systems. Overview The storage port drivers provide an interface for Win32 applications to send SCSI Command Descriptor Block (CDB) messages to SCSI devices. The interfaces are IOCTL_SCSI_PASS_THROUGH and IOCTL_SCSI_PASS_THROUGH_DIRECT. Applications can build a pass-through request and send it to the device by using this IOCTL. SPTI is accessible to Windows software using the DeviceIoControl Windows API. ImgBurn offers SPTI as a method for accessing optical disc drives. Other SCSI interfaces * Windows: ** '' Advanced SCSI Programming Interface (ASPI)'' by Adaptec, Nero AG and Pinnacle Systems ** ''ASAPI'' by VOB Computersysteme GmbH and Pinnacle Systems ** ''ElbyCDIO'' by Elaborate Bytes ** ''Patin-Couffin'' by VSO Software ** ''SCSI Pass-Through Direct (SPTD)'' by Duplex Secur ...
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ImgBurn
ImgBurn is an optical disc authoring program that allows the recording of many types of CD, DVD and Blu-ray images to recordable media (.cue files are supported as of version 2.4.0.0). Starting with version 2.0.0.0, ImgBurn can also burn files and data directly to CD or DVD. It is written in C++. It supports padding DVD-Video files so the layer break occurs on a proper cell boundary (where possible). Prior to version 2.5.1.0, the program was freeware. From version 2.5.1.0 to 2.5.7.0, Ask.com adware was included in the installer. This was replaced in version 2.5.8.0 with OpenCandy adware. Only the version of the installer distributed directly from imgburn.com contains OpenCandy; the version distributed via the official mirror sites is adware-free. No notice is present on www.imgburn.com that the checksums/hashes provided now only match the OpenCandy version of the installer; however, the author of the program has provided the expected hash values for the adware-free version on ...
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Freeware
Freeware is software, most often proprietary, that is distributed at no monetary cost to the end user. There is no agreed-upon set of rights, license, or EULA that defines ''freeware'' unambiguously; every publisher defines its own rules for the freeware it offers. For instance, modification, redistribution by third parties, and reverse engineering are permitted by some publishers but prohibited by others. Unlike with free and open-source software, which are also often distributed free of charge, the source code for freeware is typically not made available. Freeware may be intended to benefit its producer by, for example, encouraging sales of a more capable version, as in the freemium and shareware business models. History The term ''freeware'' was coined in 1982 by Andrew Fluegelman, who wanted to sell PC-Talk, the communications application he had created, outside of commercial distribution channels. Fluegelman distributed the program via a process now termed '' shareware''. ...
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SoftICE
SoftICE is a kernel mode debugger for DOS and Windows up to Windows XP. It is designed to run underneath Windows, so that the operating system is unaware of its presence. Unlike an application debugger, SoftICE is capable of suspending all operations in Windows when instructed. Because of its low-level capabilities, SoftICE is also popular as a software cracking tool. Microsoft offers two kernel-mode debuggers, WinDbg and KD, without charges. However, the full capabilities of WinDbg and KD are available only when two interlinked computers are used. SoftICE, therefore, is an exceptionally useful tool for difficult driver related development. The last released version was for Windows XP. Older versions exist for DOS and compatible operating systems. SoftICE was originally produced by a company called NuMega, and was subsequently acquired by Compuware in 1997, which in turn sold the property to Micro Focus in 2009. Currently, Micro Focus owns the source code and patents, but is no ...
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WinDbg
WinDbg is a multipurpose debugger for the Microsoft Windows computer operating system, distributed by Microsoft. Debugging is the process of finding and resolving errors in a system; in computing it also includes exploring the internal operation of software as a help to development. It can be used to debug user mode applications, device drivers, and the operating system itself in kernel mode. Overview Like the better-known Visual Studio Debugger WinDbg has a graphical user interface (GUI), but is more powerful and has little else in common. WinDbg can automatically load debugging symbol files (e.g., PDB files) from a server by matching various criteria (e.g., timestamp, CRC, single or multiprocessor version) via SymSrv (SymSrv.dll), instead of the more time-consuming task of creating a symbol tree for a debugging target environment. If a private symbol server is configured, the symbols can be correlated with the source code for the binary. This eases the burden of debugging pr ...
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Debugging
In computer programming and software development, debugging is the process of finding and resolving '' bugs'' (defects or problems that prevent correct operation) within computer programs, software, or systems. Debugging tactics can involve interactive debugging, control flow analysis, unit testing, integration testing, log file analysis, monitoring at the application or system level, memory dumps, and profiling. Many programming languages and software development tools also offer programs to aid in debugging, known as ''debuggers''. Etymology The terms "bug" and "debugging" are popularly attributed to Admiral Grace Hopper in the 1940s. While she was working on a Mark II computer at Harvard University, her associates discovered a moth stuck in a relay and thereby impeding operation, whereupon she remarked that they were "debugging" the system. However, the term "bug", in the sense of "technical error", dates back at least to 1878 and Thomas Edison who describes the "litt ...
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Kernel (operating System)
The kernel is a computer program at the core of a computer's operating system and generally has complete control over everything in the system. It is the portion of the operating system code that is always resident in memory and facilitates interactions between hardware and software components. A full kernel controls all hardware resources (e.g. I/O, memory, cryptography) via device drivers, arbitrates conflicts between processes concerning such resources, and optimizes the utilization of common resources e.g. CPU & cache usage, file systems, and network sockets. On most systems, the kernel is one of the first programs loaded on startup (after the bootloader). It handles the rest of startup as well as memory, peripherals, and input/output (I/O) requests from software, translating them into data-processing instructions for the central processing unit. The critical code of the kernel is usually loaded into a separate area of memory, which is protected from access by application ...
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PowerArchiver
PowerArchiver is a proprietary file archiver for Microsoft Windows and MacOS, developed by ConeXware Inc. It supports creating and reading ZIP, 7z, and Tar archive formats, as well as various disk image formats. Additionally, it can read (but not create) RAR and ACE files. The evaluation version of the program remains functional for 40 days. Personal licenses are currently permitted free lifetime updates to all future versions of the software, while the business license is valid through two major versions. PowerArchiver's first public release was made in March 1999. It was advertised as a free archiving solution and was written in Borland Delphi. It turned into shareware in June 2001 with version 7. Prior to being PowerArchiver, the software was known as EasyZip. A command-line version and a Microsoft Outlook plugin is also provided. PowerArchiver's user interface has been translated into 15 languages. The latest release of PowerArchiver fully supports Windows 7 and provid ...
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