Getting results from SQLCLR

I have the following issue: I must have a DLL accessed from various clients inside the LAN, that resides in a the PC that hosts the SQL Server.

I need to access this DLL from all the clients in order to have it return a legal-tax checksum.

I thought to create a CLR procedure that calls the DLL in the server and returns the checksum.

I followed some internet examples and created a simple HelloWorld app....

I created a DLL in C#

[SqlProcedure]
 public static int HelloWorld(int h)
 {
     return h;
 }
 

I created the assembly in SQL Server:

CREATE ASSEMBLY MyChecksum
     from 'C:\Users\Panos\Documents\Visual Studio 2010\Projects\DigitalSignature\Algobox\bin\Debug\checksum.dll'
     WITH PERMISSION_SET = UNSAFE  
 

I created the procedure

CREATE PROC sp_mychecksum (@h int)
 AS
 EXTERNAL NAME MyAlgobox.Signatures.HelloWorld 
 

The bottom line is that when I execute my procedure (exec sp_mychecksum

12) I get only a message

Command(s) completed successfully

and not the 12

Any clues?

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