TL:DR; PDFLock - A developer dll for setting all security options, main- and user-password, encryption type .
PDFLock - A developer dll for setting all security options, main- and user-password, encryption type ... Royalty free! Easy to use! For all well known IDEs (.NET, too!).
A library based on the Watermark Master application. It is intended for creation of videos and images with adding watermarks of any kinds, creation of thumbnails, extraction and removal of video scenes. The library supports all basic video formats.
ASPThumb is an ASP component (ActiveX) that allows ASP applications to create high-quality thumbnails. Use this component for automated creation of image previews in your ASP applications.
Serial Port Control is an inexpensive royalty-free component. It supports VB, VB.Net, C#, Borland Delphi, Borland Builder. Just put it on a form and you`ve got all the functionality you need to access an RS232 port.