You can download ProLatDLLDemo 4.0 from our software library for free. This program was originally produced by Effective Objects. The program lies within Development Tools, more precisely General. The following version: 4.0 is the most frequently downloaded one by the program users.
From the developer:
ProLat DLL is a complete coordinate conversion toolkit for most programming languages and Excel.
You may want to check out more software, such as GnuWin32: PlotUtils, PanelDaemon or CCP4-Packages, which might be related to ProLatDLLDemo.