Bold Text size in windows XP is bigger

Hi,

I built an exe on a Windows 7 LabVIEW 2012, The display gives me no problem. As I try to install the exe application onto the XP, I see the font size is different from what it looks like on Windows7. I've set the font as "bolt". How can I define the font style as constant on every system?

 on Windows 7

 onWindows XP

Wilbur