The .NET Email Validation Library by Kellerman Software is the cutting edge of email validation. We spent months analyzing fake email addresses. The fake email pattern checker eliminates numerous bad emails that actually return as valid email addresses with our competitors. It detects mail servers that implement grey listing so the email addresses can be verified later. It detects servers that are blocking your mail server. It detects disposable email addresses such as mailinator.com. It detects free email addresses. Sick of curse words in your mailing list? Eliminate them. The .NET Email Validation library doesn't have levels; it has options. Choose whatever options suit your project. Yes it performs industry standard syntax checking, mxRecord (Mail Exchange Record) lookups, and mailbox verification using multiple threads asynchronously. It supports all .NET project types including Winforms, ASP.NET, and Web Services. It supports all .NET languages including VB.NET and C#. Download the full list of features.

Oxygene and RemObjects C# (formerly code-named Hydrogene) are a modern development tool stack for creating applications for all three major development platforms: .NET, Cocoa and Java.

Leverage the same language skill set, no matter what platform(s) you are developing for, without losing the benefit of working natively and directly with the underlying platforms — be it the .NET Framework, the Java and Android Runtime Libraries, or the Cocoa and Cocoa Touch Frameworks.

DropMaster is a set of 4 native VCL controls for use in Delphi and C++Builder. While the VCL components included with Delphi and C++Builder permit drag and drop between windows in the same application, DropMaster allows developers to add support for drag and drop between applications. The drag and drop can be between the developer's new application and existing applications such as the Microsoft Office suite, a web browser, etc., or between two custom-written applications.

Telerik UI for WinForms includes more than 90 user interface controls you can use to fulfill the most demanding desktop or tablet application requirements. All-way customizable GridView, Form, Chart, Scheduler, RichTextBox and other essential controls enable you to build any Line of Business or Modern application in less time while staying under budget.