Not able to Install node.js on window

I am using window 7 Professinal 32 bit. I am able to install xampp and node.js sucessfully.

I have some code of node.js. i jst copy into htdocs/projectname

now when i run this commonad on this path

C:\xampp\htdocs\projectname\nodejs>node app.js
This version of C:\xampp\htdocs\projectname\nodejs\node.exe is not 
compatible with the version of Windows you're running. Check your computer's system informatio
n to see whether you need a x86 (32-bit) or x64 (64-bit) version of the program,
 and then contact the software publisher.

Can anybody help me to configue this

Thanks