The loss of source codes is a very serious problem for many developers. From my personal experience I can say that it is indeed a terrible misfortune. Imagine you write the program, spend your force, time and money, release compiled program to the customers... But one morning you see that all your sources are gone (it may be your cat, or aliens. Who knows?) You are in panic. What should you do? Tear one's hair? There is no need. Just take the VB Decompiler and simply decompile your project! VB Decompiler restores the source code from the pseudo code (P-Code) as close as possible to the original. So, after some modifications you may get really workable source code.

Grids of different vendors have almost the same performance when working with static data, i.e. insertion, deletion and data sorting speed remain unchanged. In this field Dapfor’s products have similar characteristics to competitor products. However, with dynamic data Dapfor’s products are unmatched. Performance of dynamic data sorting, filtering and grouping is hundreds times higher than that of competitor grids. A good example is trading application that demonstrates low processor load upon real-time data modification.

The QuickBooks Integrator provides easy-to-use components for QuickBooks development, facilitating tasks such as adding, updating or retrieving customer information, vendor information, employee information, transactions etc. Fully-managed C# components optimized for cross-platform Xamarin development. Build applications with Xamarin and ship across iOS, Android, and Mac.

The SharePoint Integrator contains everything needed for dynamic integration with Microsoft SharePoint Server. The components enable access to SharePoint objects, allowing applications to easily query and modify lists, access hosted documents, and even make dynamic modifications to SharePoint configuration programmatically. Fully-managed C# components optimized for cross-platform Xamarin development. Build applications with Xamarin and ship across iOS, Android, and Mac.

The Spreadsheet Integrator is a set of components that allows developers to easily read, write, and update popular spreadsheet formats including Microsoft Excel and Google Spreadsheets. The components provide developers with straightforward access to spreadsheet data and include easy-to-use controls for manipulating layout, formatting, formulas, etc. Fully-managed C# components optimized for cross-platform Xamarin development. Build applications with Xamarin and ship across iOS, Android, and Mac.

The /n software SSIS Task Library provides robust, enterprise-ready Internet connectivity, secure messaging, compression, and secure file transfer for SSL Server Integration Services (SSIS). The /n software SSIS Tasks for Microsoft SQL Server Integration Services consist of a single task library containing individual tasks for Internet communications. Built from the same core codebase as the /n software Adapters for Microsoft BizTalk Server, the SSIS Tasks provide robust enterprise ready Internet connectivity, secure messaging, and file transfer.

Fully-managed WCF Adapters that extend Windows Communication Foundation (WCF) with enterprise-class Internet communications, secure messaging, and secure file transfer capabilities. The /n software WCF Channels consist of fully-managed .NET Transport Channels that integrate with Windows Communication Foundation. The Channels extend the features of WCF with advanced Internet communications and secure messaging capabilities, providing robust enterprise ready Internet connectivity, secure messaging, and file transfer.

The /n software Workflow Activities provide robust, enterprise-ready Internet connectivity, secure messaging, and file transfer for Windows Workflow Foundation. Built on top of the award-winning IP*Works! libraries, each Activity includes multiple operations enabling you to integrate a full range of Internet capabilities into your Workflow packages.

The X12 Integrator includes software components that facilitate Electronic Data Interchange (EDI) mapping and translation (X12 & EDIFACT). The components include flexible schema support enabling developers to use various schema formats allowing for easier integration with existing EDI processing applications.

EDI Mapping & Translation
Powerful EDI translation components with flexible EDI schema support, easy-to-use XPath style document navigation, and more.
Flexible Schema Support
Support for multiple, common, schema formats allowing easier integration with existing EDI processing applications.
Outstanding Technical Support
Backed by an expert team of support professionals. Unlimited free Email support or paid Premium Support options.
Fully-Embeddable Components
Native software components for various technologies enable seamless integration with any application or solution.
Other Features...
Detailed documentation, hundreds of sample applications, fully-indexed help files, and more.

(POS-4.1 Code Project + Apps) is C# based Desktop application.
The Latest Technology | Excellent Features | Competitive Rates

This is suitable for small and medium businesses/organization specially

Super-shop
Restaurants
Sales Management
Inventory System
Stock Management