The table below lists the architectural components used to support the Microsoft OLE DB Provider for AS/400 and VSAM.
| Module | Description |
|---|---|
| DDMSERV.EXE | The DDM Server implements a source-only DDM Application Requester that communicates with the target DDM Servers running on MVS, OS/390, or OS/400. The DDM Server handles connection management, memory management, file management, and error handling. On Microsoft® Windows NT®, by default DDMSERV runs as an auto-started Windows NT service, although this behavior can be changed. |
| MMCRLIO.DLL | SNA OLE DB Management Console snap-in. This component manages data sources and host column description files under the Windows NT or Microsoft® Windows® 95 operating system. |
| SNAOLEDB.DLL | The OLE DB provider for AS/400 and VSAM. Server-based and client-based OLE DB and ADO programs call this provider to gain record-level access to host files. |
The following additional components must be installed in the SNA\SYSTEM subdirectory to support the OLE DB Provider for AS/400 and VSAM:
CONV.DLL
DCONV.DLL
DDM.DLL
DDMAPI.DLL
DDMRLIO.DLL
DDMSTR.DLL
DDMWAPPC.DLL
SNAOLEDB.MSC
WINAPPC.DLL