How to determine a 16 bit application from a 32 bit application ?

Old 16 bit app are still useful and are in use by many. I think this is the result computer evolution. If You want to know whether a particular executable is a 16 bit or 32 bit application, here is a secret. Right-click the program’s executable file and Then choose Properties. If You see a Version tab, it’s a 32-bit program else its a 16-bit program. Alternately You can go into task manager and look for applications that have ntvdm.exe (virtual dos machine) in the name column of process tab. If there is one, it means its a 16 bit app.