Windows – Make 32-bit programs run on Windows XP 64-bit

32-bit64-bitwindows xp

I have a Windows XP 64 bit version and all applications work as 32 bit.

I'm having difficulties running these applications.

How can I make them work as 64 bit?

Best Answer

The only way you'll make the applications work as 64-bit applications is to compile them as 64-bit applications. Til you do that, they'll run as 32-bit. They should work fine, but will have most of the same limitations they've always had.

There are ways to help ensure that code will be compatible with 32- and 64-bit processors. Make sure you don't do int-->pointer and pointer-->int conversions, or rely too much on the size of ints, longs, etc.

If you don't have the original code, you're kinda screwed, and will have to wait for whoever does have the code to release a 64-bit version of the app.

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