Technology Insights

Windows Tool: Applications Running In 64-Bit 0r 32-Bit Mode, Services x86 or x86_64

I recently purchased a new Dell laptop running Windows 7 Ultimate 64-Bit which is the first 64-Bit computer I have ever had as my main computer. I have done some work in the past on computers using 64-Bit operating systems but now that I have one there are a lot of questions coming up regarding how applications launch and specifically what mode they are running in. On Windows 7 64-Bit there are two different “Program Files” directories which allow 64-Bit applications to run as well as 32-Bit applications to run. Below I explain how to verify if a Windows service is running in 32-Bit (x86) mode or 64-Bit (x86_64) mode.