I use :
Server:window 2000 advance server 
IIS 5.0
PHP version :php-4.0.6-Win32
set DSN in Data Source(ODBC).User DSN =test and point to
Microsoft Access (*.mdb)   when i use this code

  $db=odbc_connect("test'","","");
  $rc =odbc_exec($db,"select * from pass");
  while(odbc_fetch_row($rc)){
    print(odbc_result($rc,1)."<br>");
   }

It has error :
Warning: SQL error: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified, SQL state IM002 in SQLConnect in F:\works\work\webpage\test\t.php on line 20

Warning: Supplied argument is not a valid ODBC-Link resource in F:\works\work\webpage\test\t.php on line 21

Warning: Supplied argument is not a valid ODBC result resource in F:\works\work\webpage\test\t.php on line 22

I try change add dsn in system dsn that not work and say same error messages.

It try it in window98,window 2000 Professional,window me.
It work.
Please help