Help in Delphi about Interval:
Use Interval to specify any cardinal value as the interval between OnTimer events. The default value is 1000 (one second).
共享一块内存中要比访问文件快的多,不过
就要麻烦的多了!
Dos application writes its requests to file,
and Win32 application monitor the change of filesystem, (just need
monitor that file only) so that when the file changes, it can response
to the content of that file,
DOS application needs know nothing about messages.