More Software Like OstroSoft SMTP Component 5.2

beWISE

beWISE provides a very easy-to-use interface for sharing data between your applications, allowing them to exchange information in real-time. Simply share variables among all your VB.NET, VB6 and C programs as if they where global variables.

VisioForge FFMPEG Source DirectShow

FFMPEG Source DirectShow filter can be used in any DirectShow application to perform video / audio files decoding and playback. SDK contains FFMPEG DLL's and DirectShow filter with standard file-selection and custom interfaces implemented.

BasicAudio.NET

BasicAudio is a set of .NET 2.0-4.0 components for easy audio capture and playback. Allows audio capture and playback with zero lines of program code. The library supports large number of formats and technologies. Free for non-commercial use.