File extension Details of PCK, PCM, PDB, PDO, PFX, PGM, HXX, PJT, PJT

Turbo Pascal

Company / developer:
  Borland Software Corporation

Turbo Pascal

Turbo Pascal is a complete software development system that includes a compiler and an Integrated Development Environment (IDE) for the Pascal programming language running under CP/M, MS-DOS and CP/M-86, developed by Borland under Philippe Kahn's leadership. The name Borland Pascal was generally reserved for the high end packages (with more libraries and standard library source code) while the original cheap and widely known version was sold as Turbo Pascal. The name Borland Pascal is also used more generically for Borland's dialect of Pascal.

Bliss for Windows

Company / developer:
  Handicom

The BlissProcessor was released by Handicom in 1988. It contained a series of programs to work with Bliss. Bliss is a graphical language used all over the world by people who can't speak or write. With the BlissProcessor you could make communication charts, write Bliss text, make Bliss selection sets, et cetera.
The Bliss Processor was made in 1988 for use on DOS. When Windows became more popular than DOS, a Windows version of the Bliss Processor was awaited by many.
In 1996 Handicom started to release the Bliss for Windows series. Although Bliss for Windows looks totally different from the Bliss Processor, it contained the same elements. Only the Export Program and the e-mail facility (added to the Document Maker) have been added to the package. Bliss for Windows has been revised a number of times.

PowerBASIC

Company / developer:
  PowerBASIC, Inc.

PowerBASIC

We offer compilers and other software development tools. Some of the best in the industry. Perfect for the novice programmer, the expert programmer, and most any level in between. We support both DOS and Windows. For a brief overview of exactly what we can offer you, just click here. You'll quickly learn how PowerBASIC Programmers Compile without Compromise!

Microsoft Access

Company / developer:
  Microsoft Corporation

Microsoft Access

Microsoft Access (current full name Microsoft Office Access) is a relational database management system from Microsoft, packaged with Microsoft Office Professional which combines the relational Microsoft Jet Database Engine with a graphical user interface.

Microsoft Access can use data stored in Access/Jet, Microsoft SQL Server, Oracle, or any ODBC-compliant data container. Skilled software developers and data architects use it to develop powerful, complex application software. Relatively unskilled programmers and non-programmer "power users" can use it to build simple applications without having to deal with features they don't understand. It supports substantial object-oriented (OO) techniques but falls short of being a fully OO development tool.

Office Access 2007 introduces a few new file extensions:

• ACCDB The file extension for the new Office Access 2007 file format. This takes the place of the MDB file extension.
• ACCDE The file extension for Office Access 2007 files that are in "execute only" mode. ACCDE files have all Visual Basic for Applications (VBA) (Visual Basic for Applications (VBA): A macro-language version of Microsoft Visual Basic that is used to program Microsoft Windows-based applications and is included with several Microsoft programs.) source code removed. A user of an ACCDE file can only execute VBA code, not modify it. ACCDE takes the place of the MDE file extension.
• ACCDT The file extension for Access Database Templates.
• ACCDR ACCDR is a new file extension that enables you to open a database in runtime mode. By simply changing a database's file extension from .accdb to .accdr, you can create a "locked-down" version of your Office Access 2007 database. You can change the file extension back to .accdb to restore full functionality.

New features of the Office Access 2007 file format

Multivalued lookup fields Most database programs, including prior versions of Access, only allow you to store a single value in each field. In Office Access 2007, however, you can now create a lookup field that allows you to store more than one value in each field. In effect, it creates a many-to-many relationship within the field, and hides the details of the implementation using system tables.

For example, suppose you have a Task table with a lookup field that you used to assign the task to an employee. What if you have a task that you need to assign to several employees? In earlier versions of Access, you would need to set up a new cross-reference table to store each combination of task and employee, then revise your forms and reports to use the new data structure. In Office Access 2007, this is made much easier by implementing a multivalued lookup field. Instead of being able to select only one item from a drop-down list, now each item in the list has a check box next to it so that you can select as many as you like. The multiple selections are displayed in the field, separated by commas.

Find links to more information about multivalued lookup fields in the See Also section.

Attachment data type The new Attachment data type lets you easily store all types of documents and binary files in your database without unnecessary database bloat. Attachments are automatically compressed when appropriate to maximize space usage. You can attach a Microsoft Office Word 2007 document to a record, or save a series of digital pictures. You can even have multiple attachments attached to a single record.

For more information about attaching files to records, see the links in the See Also section.

Integration with Microsoft Windows SharePoint Services 3.0 and Microsoft Office Outlook 2007 In the past, Access files have been blocked from Windows SharePoint Services 3.0 and Office Outlook 2007 due to the fact that unsafe code could be included within an Access database. Office Access 2007 implements a new format that allows code to be either verified as safe or disabled. This makes it possible to integrate Access databases much more fully with Windows SharePoint Services 3.0 and Office Outlook 2007, and it also allows anti-virus programs to inspect Access database files much more easily.

Work with your SharePoint data offline You can take your SharePoint lists offline with one click using Office Access 2007. Work on your data in Access and then synchronize your changes, or reconnect with the SharePoint site at a later time.

Memo field history tracking Memo fields are useful for storing large amounts of information. Starting with Office Access 2007, you can set a property (AppendOnly) that forces Access to retain a history of all changes to a Memo field. You can then view a history of those changes. This feature also supports the versioning feature in Windows SharePoint Services 3.0 so that you can use Access to track changes in a multiple lines of text field stored in a SharePoint list (provided that the field has the Append Changes to Existing Text option set to Yes).

PFXplus

Company / developer:
  Powerflex Corporation

PFXplus

The PFXplus version 5.0 Development System is the industrial-strength solution for the toughest application development problems. Now you get more tools to help you work smarter and deliver more and better software than ever before.

Visual C++

Company / developer:
  Microsoft Corporation

Visual C++

Visual C++ provides a powerful and flexible development environment for creating Microsoft Windows–based and Microsoft .NET–based applications. It also enables developers to build Web applications, smart-client Windows-based applications, and solutions for thin-client and smart-client mobile devices.

Visual C++

Company / developer:
  Microsoft Corporation

Visual C++

Visual C++ provides a powerful and flexible development environment for creating Microsoft Windows–based and Microsoft .NET–based applications. It also enables developers to build Web applications, smart-client Windows-based applications, and solutions for thin-client and smart-client mobile devices.

Visual C++

Company / developer:
  Microsoft Corporation

Visual C++

Visual C++ provides a powerful and flexible development environment for creating Microsoft Windows–based and Microsoft .NET–based applications. It also enables developers to build Web applications, smart-client Windows-based applications, and solutions for thin-client and smart-client mobile devices.

Visual FoxPro

Company / developer:
  Microsoft Corporation

Visual FoxPro

Visual FoxPro is a data-centric object-oriented and procedural programming language by Microsoft. It is derived from FoxPro (originally known as FoxBASE) which was developed by Fox Software beginning in 1984; Fox Software merged with Microsoft in 1992 and the software acquired further features and the prefix "Visual". The last version of FoxPro (2.6) worked under the Mac OS, DOS, Windows, and Unix: Visual FoxPro 3.0, the first "Visual" version, dropped the platform support to only Mac and Windows, and later versions were Windows-only.

Visual FoxPro, also known as VFP, is mainly used to write desktop database applications running on Windows but it can also be used to write fat client, middleware, and web applications.

In late 2002, it was demonstrated that Visual FoxPro can run on Linux under the Windows emulator Wine. In 2003, this led to complaints by Microsoft: it was claimed that the deployment of FoxPro code on non-Windows machines violates the End User License Agreement.

Rumors suggesting that Microsoft intends to end support for FoxPro have been common since Microsoft's acquisition of the product, despite the product having one of the longest support timeframes for a Microsoft product (extended support until 2014). VFP 9 was released to manufacturing on December 17, 2004, and the Fox team is currently working on a project codenamed Sedna which will be built on top of the VFP9 codebase.

LoseThos

Company / developer:
  Terry A. Davis

LoseThos

LoseThos is for programming as entertainment. It empowers programmers with kernel privilege because it's fun. It allows full access to everything because it's fun. It has no bureaucracy because it's fun. It's the way it is by choice because it's fun. Don't you hate ninnies who harp on the point of overusing an admin account? Not having kernel privilege, for a programmer, is like not having an admin password on your own computer!

LoseThos is in no way a Windows or Linux wannabe -- that would be pointless. LoseThos is not trying to win a prize for low resource usage or run on pathetic hardware. Low line count is a goal, though. It's 100,000 lines of code including a 64-bit compiler, tools and a graphics library.

A bigger goal is making applications low line count. "Hello World" takes one line of code. You can put graphics on the screen with two lines of code. You don't need to include header files or mess with namespaces. It has a scoping system, though, with tasks inheriting symbols of parents and all system-wide symbols and code in the Adam (as in Eve) task's heap.

LoseThos uses some tricks to keep line count down, like processing whole files. It has a flat, identity mapped virtual-to-physical address map, the same for all tasks. It updates the whole screen 60 times a second instead of trying to keep track of what has changed. The most demanding application is a full screen video game, so it might as well be optimize for that instead of trying to get idle low. It uses the same compiler for the command line as for programs and it uses the same viewer/editor for the command line, help system, forms and dialogs.

LoseThos is not trying to be bullet-proof -- it's for home computers, not mainframes where many users suffer when a crash occurs. It reboots in 2 seconds plus BIOS time. It's no worse than a hung task in Windows or Linux. I know people obsess on this topic. You know how the last 20% of a project takes 80% of the time? LoseThos is an order of magnitude simpler by not trying to be bullet-proof.

There are two programmers who will work on LoseThos -- the user and I. It is for programming as entertainment, and I mean that. Why would you buy a 3rd party program to run on a system with crappy graphics that can crash? There are no scalablity issues. Imagine LoseThos more similar in usage to a 8-bit non-networked home computer's ROM than to Windows or Linux, though, it is 64-bit and far more than that. You are free to access anything documented or undocumented in the system source code -- have fun! I have fond memories of the days when average users typed-in programs from magazines and tinkered with them.

LoseThos was designed from scratch with a clean slate and has no compatibility with anything else. Source code is ASCII plus binary graphics data. It has a new language roughly based C/C++. It's more than C and less than C++ so, maybe, it's C+. I took every opportunity to improve things once I made a clean break with the past. That's another reason LoseThos has value -- it is innovative.