Urgent! BCP command failed on SQL2000, but okay on SQL7

Hi,

Environment: Win2000, SQL2000
Both the command file and SQL2000 are installed on the same machine.

I have a command file with the following SQL statement:

bcp "SELECT * FROM [%dbname%].[dbo].[%1] WHERE DATEDIFF(hour,Tim
eStamp,
DATEADD(n, - DATEPART(n,getdate()
), getdate())) <=24" queryout %CurDate%.tmp
-U -P -f %formatfile%

I can run this file on a machine with SQL7 installed, but have error when I
run it on a machine with SQL2000. Here is the error:

SQLState = 08001, Native Error=17
Error=[Microsoft][ODBC SQL Server Driver][Shared Memory]SQL Serv
er does not
exist or access denied.

SQLState = 01000, Native Error=2
Warning=[Microsoft][ODBC SQL Server Driver][Shared
 Memory]ConnectionOpe
n(Connect()).

I also tried to add parameter with -S  server_name\instance
_name.
I got similar error messages:

SQLState = 08001, Native Error=17
Error=[Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server do
es not
exist or access denied.

SQLState = 01000, Native Error=2
Warning=[Microsoft][ODBC SQL Server
Driver]& #91;DBNETLIB]Connect
ionOpen(Connect()).

Does anyone know where is the problem? How can I fix it?

Thanks for the support!