Collaboration Data Objects (CDO) for Microsoft® Windows NT® Server (CDONTS) has been removed from Microsoft® Windows® Server 2003. However, if you upgrade to Windows Server 2003, CDONTS remains on your server, because Cdonts.dll is not removed during an upgrade to Windows Server 2003. CDONTS is not installed when you perform a clean installation of Windows Server 2003, but if necessary, you can copy it to the computer running Windows Server 2003 and register it.

Note: If your Web applications use CDONTS, you can modify your code to use Collaboration Data Objects for Windows 2000 (CDOSYS), which is supported by Windows Server 2003.

To copy CDONTS to a computer running Windows Server 2003

1. On the source server, copy Cdonts.dll from the systemroot\system32 folder to a floppy disk. 2. On the target server, copy Cdonts.dll from the floppy disk to the folder systemroot\system32. 3. To register CDONTS, on the target server, in the Run dialog box, type cmd, and then click OK. 4. At the command prompt, change to the systemroot\system32 directory and then type: regsvr32 %windir%\system32\cdonts.dll. If the process is successful, the following message displays: DllRegisterServer in cdonts.dll succeeded. 5. Click OK.