DEP issues Fixed

[GoogleCodeExporter]

The Symptoms: 
Application crash when ever a circuit with an Equation or 
Differential Sytsem object are played.

The cause:
Both the Equation and Differential system objects dynamically 
compile their equations to memory. Newer Windows version employ 
DEP (Data Execution Prevention) to prevent such cross modified 
code.

The Cure:
ABox revision R25 attempts to fix this by setting necessary flags
in a Win32 API call. 

It is thought that the problem is now fixed. 
With thanks to qWord and the folks at masm32.com.

Original issue reported on code.google.com by [email protected] on 5 May 2014 at 12:29