SAS 9.1.3 Integration Technologies » Server Administrator's Guide

Setting up a COM/DCOM Connection
Server and Client Requirements
Summary of Setup Steps
Planning Your Server Configuration Metadata
Standard Server Metadata
Creating Metadata Using SAS Management Console
Defining Servers
Modifying Servers
Custom Workspace Servers
OLAP Servers
Enabling DCOM on the Server and the Client
Configuring SAS for DCOM
Setting SAS Permissions on the Server
Default on Windows NT/2000
Per Application on Windows NT/2000
Default on Windows XP  Server 2003
Per Application on Windows XP / Server 2003
Configuring DCOM on Windows XP SP2 / Server 2003 SP1
Configuring COM/DCOM for Active Server Page Access
Accessing a Local COM IOM Server from an Active Server Page
Accessing a Remote DCOM IOM Server from an Active Server Page
Administering the Server:
Creating a Metadata Configuration File in SAS
Using ITConfig
Reference Materials
AppIDs for Configuring DCOM
Object Server Parameters
Fields for the Server Definition

Enabling DCOM on the Server and the Client

To establish a DCOM session, you must ensure that DCOM is enabled on the server machine and on each client machine. Perform the following steps on each machine:

  1. From the Windows Taskbar, click Start arrow Run.

  2. Type dcomcnfg, as shown in the illustration.

    NT Run Dialog

  3. Click OK. The dialog box that appears depends on the Windows operating system you are using:

    • If you are using Windows NT/2000, the Distributed COM Configuration Properties dialog box appears.
    • If you are using Windows XP, the Component Services dialog box appears. Expand the Component Services folder, expand the Computers folder, then right-click on My Computer and select Properties.

  4. Select the Default Properties tab.

    DCOMCNFG Default Properties Dialog

    Note: The dialog box might look slightly different than the illustration, depending on the version of Windows you are running and which Service Pack you have applied.

  5. Select Enable Distributed COM on this computer.

  6. COM uses the Default Authentication Level when a client or server does not provide a specific value, either programmatically or on the Applications tab (which creates an AppID-based setting in the Windows registry). For Default Authentication Level, choose the value that is most appropriate for applications that do not have a specific setting of their own. This value will not be used by an IOM server if you set its authentication level individually using the Application tab (see Setting Permissions per Application on Windows NT/2000 and Windows XP).

    Select an Authentication level of Connect to provide a good balance between security and system performance. More restrictive security levels can be required based on the needs of your site and your users. For a description of additional levels, consult the Windows NT Help.

    Note: Currently, event output from the SAS server sent to client applications cannot be encrypted due to Microsoft COM restrictions.

  7. It is recommended that you select an Impersonation Level of Impersonate.

This completes the steps necessary to enable DCOM on the clients and servers.