the fonts you get in development are set in your labview.ini. When you build a standalone app, labview deploys <appname>.ini to the install folder and similar ini tokens are used by the labview runtime engine for basic settings.
In the build specification for an application, you can specify a special .ini file to use. simply create an ini file with the flags you want, then add it to your project and you can access it there.
I've standardized on Tahoma 13, since that's a sort of winXP default, and if I use tahoma 13 on both my win7 dev machines and winXP targets, at least most things stay the same. I also routinely add color history entries to an app's ini file, so that there are at least some pretty options there if a user wants to change a plot color, for example.
so find the ini file that your built app already has and add something like this to it:
appFont="Tahoma" 13
dialogFont="Tahoma" 13
systemFont="Tahoma" 13
colorHistoryItemA=00FF0000
colorHistoryItemB=00FF6600
colorHistoryItemC=00FFCC00
colorHistoryItemD=00FFFF00
colorHistoryItemE=0033FF00
colorHistoryItemF=00006600
colorHistoryItemG=0000FFFF
colorHistoryItemH=000000FF
colorHistoryItemI=009900FF
colorHistoryItemJ=00FF33CC
colorHistoryItemK=00663300
-Barrett
CLD