The real issue is not that long ( "12.5.2.5583" ) returns 0 instead of 12525583 with regional setting of comma as decimal point.
The issue would be if long ( "125.255,83" ) didn't return 125255 with comma as decimal point.
For the regional setting of point as decimal point people:
long ( "125,255.83" ) should always return 125255
long (12,5,2,5583) should return 0 as isNumber (2,5,2,5583) returns FALSE, but it returns 12525583
Not sure about the RunTime error Arnd 