I didn't get that error but it did fail due to the characters. I have a special version that pauses so I can pull them out since Visual Basic doesn't appear to handle them at all.
Anyway, I attached the GNIS points in shapefile format.
The projection the system thinks it is is:
GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]
Aka WGS 1984 which is very very similar to NAD 83