Configuring COM/DCOM for Active Server Page Access

Note: You can also configure your Active Server Page (ASP) application to access SAS using the IOM Bridge for COM. You might want to use IOM Bridge for COM when SAS is running on OS/390 or a Unix machine you want to share a configured SAS server with Java applications. If you are using the IOM Bridge for COM, the configuration in this section is not required. See Choosing a Server Configuration for details.

COM/DCOM Configuration

To configure a Windows Active Server Page (ASP) client running in Microsoft Internet Information Services (IIS) for access to a Windows server using DCOM, you must perform two different types of configuration:

1. A basic configuration that is similar to a standard Windows client that accesses a Windows server using DCOM.

   To perform this basic configuration, follow the instructions in Enabling DCOM on the Server and the Client.

2. Additional configuration steps that will enable a Web client to access an IOM server. There are two ways that you can access a Windows Server using COM/DCOM:
   • To configure access to a local COM IOM server, see Accessing a Local COM IOM Server from an Active Server Page.
   • To configure access to a remote DCOM IOM server, see Accessing a Remote DCOM IOM Server from an Active Server Page.

Permissions

Use dcomcnfg to configure the SAS: IOM DCOM Servers application. To configure the DCOM or COM when using ASP, you must change access and launch permissions for the SAS: IOM DCOM Servers application. Therefore, you should also familiarize yourself with Setting Launch Policies per Application.

If you are experienced with using IIS and DCOM and only need to know the permissions required for your setup, see the following table for details about these permissions.

IOM Server	Web Server	DCOM Access Permission (on IOM Server)	DCOM Launch Permission (on IOM Server)	Other Notes
Local COM	IIS 4 All Authentication Methods	System	System
	IIS 5 using Anonymous Access	IUSR_<machine_name> IWAM_<machine_name>	IUSR_<machine_name> IWAM_<machine_name>	The COM+ application can be configured so it is launched as a different user; however, this is not necessary. Refer to Configure your IIS Application to use High (isolated) Application Protection for details.
	IIS 5 using Basic Authentication and Integrated Windows Authentication	IWAM_<machine_name> Any valid NT user account that will be accessing the ASP	IWAM_<machine_name>
Remote DCOM	IIS 4 All Authentication Methods	System Network	System Network	If you are setting up the remote DCOM IOM server on a Windows 2000 or XP computer, you must configure the DCOM server to run as a different user than the launching user.
	IIS 5 All Authentication Methods	User account launching IIS COM+ application Network	User account launching IIS COM+ application	The COM+ application must be configured so it is launched as a user that exists on both the Web server and DCOM IOM server. Refer to Configure your IIS Application to use High (isolated) Application Protection for details.