Decrypting and Encrypted Stored Procedure

Hello,
In SQL 2000,
I have created a Stored Procedure as follows,

Code Snippet

CREATE PROCEDURE MyTest
WITH RECOMPILE, ENCRYPTION
AS
Select * From Customer

Then after this when i run this sp it giving me the perfect results wht i want, BUT when i want to change something in sp then for I am using the below line of code.

Code Snippet

sp_helptext mytest

But its displaying me that this sp is encrypted so you can't see the details and when i am trying to see trhe code of this sp from enterprise manager then also its not displaying me the details and giving me the same error,
So i want to ask that if there is a functionality of enrypting the sp code then is there any functionality for decrypting the Stored Procedure also,
or not,
If yes then wht it is and if NO then wht will be the alternative way for this,
?

You won’t retrieve back the source using sp_helptext /SMO, when you say WITH ENCRYPT.

You have to maintain your procedure source (like in File system or VSS). The encryption is very useful when you launch a product along with your database to public. So they can see the table schema but they can’t change or edit or view your programmability source code.