It's not a bug: CR is carriage return, so the line is the same.

The line 2 is not printed beacuse the print command is joined to the commented line.

So, change the single line comment with /**/. All lines will be printed.

declare @sql varchar(100)

declare @cr char(1)

declare @NL char(1)

set @cr = char(13)

set @NL = char(10)

set @sql =

'print 1' + @cr + @NL +

'/* Comment one */' + @cr +

'print 2' + @cr + @NL +

'/* Comment two*/' + @cr + @NL +

'print 3' + @cr + @NL +

'/* Comment three*/' + @NL +

'print 4'

print '

What you see...'

print '-----------------------'

print @sql

print '

is not what you get!'

print '-----------------------'

exec (@sql)