windows 32 invalid application

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I have created a program that opens file with the extension .ssp and it works fine in my laptop with windows 7.I have created the setup file also.But when i run the setup file of that program on a windows xp pc and then try to open a file with the extension .ssp it says that C:\Users....\myprogram.exe is not a valid windows 32 application.What can i do so my program to work in every windows edition e.t.c..
Appreciate Yor Help!.

Posted 24-Dec-11 3:57am

Juljano

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RaviRanjanKr · Answer 1 · 2011-12-24T04:10:00

It might because of .Net Framework compatibility issues. Make sure you installed appropriate .Net Framework in your Windows XP OS. Windows 7 has itself integration of .Net framework that many be a reason you are not getting error.
and for other issues just check
.exe is not a valid Win32 application
[^]
and .NET 4 Program written/compiled on Windows 7 machine won't run on XP[^]