Fabio,

I'm not exactly sure what you are calling a bug here, there's nothing conditional about the temp table itself, it will have to exist in the context of the calling SP for the code below to work at all. But anyway this code compiles and executes without error:

CREATE	PROCEDURE dbo.test1
	@choice bit = 0
as
	if @choice=0
		insert into #temptable SELECT 1 x
	else
		insert into #temptable SELECT 0 x

>Someone knows an setting in order to jump this stupid error,
>and compile this simple sp:
>

>CREATE	PROCEDURE dbo.test1
>	@choice bit = 0
>as
>	if @choice=0
>		SELECT 1 x INTO #TEMPTABLE
>	else
>		SELECT 0 x INTO #TEMPTABLE
>