You could have downloaded VLEFlash 4.0 from our software library for free. Commonly, this program's installer has the following filename: VLEFlash.exe. The following version: 4.0 was the most frequently downloaded one by the program users. The actual developer of the program is Flow Phase Inc. The program lies within Education Tools, more precisely Science Tools.
From the developer:
VLEFlash is a Win32 application developed by Flow Phase Inc. for the prediction of thermodynamic and transport properties. And the drawing of phase envelope and vapour fraction lines of fluid mixture. It can be used for pure fluids or for mixtures of up to 20 components selected from the database of 215 components, mostly hydrocarbons.
You may want to check out more software, such as Archimedes Geo3D, ChemDBsoft Lite Demo or MaxPoint, which might be similar to VLEFlash.