The following example splits a string using a delimiter. Note that StrictDelimiter
must be set to true. Otherwise the standard splitter will be uses like space.
var
item : TStringList;
begin
item:= TStringList.Create;
item.Delimiter:='.';
item.StrictDelimiter:=true;
item.DelimitedText:='ApplicationName.13655';
app:= Trim(item[0]);
key:= Trim(item[1]);
FreeAndNil(item);
end;