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What is the .CDM File Extension?

.CDM File Extension Description:

The CDM file extension is used by Novell Netware Disk Drivers NPA or Network Peripheral Architecture. NPA is a feature of Netware that lets developers support and add new devices for storage in their related controllers. Files in the .cdm file extension are Custom Device Modules, which control the device that is connected to the adapter. There may be multiple files with the .cdm file extension for one adapter, as each device attached to the adapter needs its own Custom Device Module.

Files in the .cdm file extension are driver modules that are Netware loadable. These allow the NetWare Operating System to recognize, communicate, and control different types of peripheral devices that can be connected into a Novell NetWare Server like CD-Rom driver, Tape Back-up devices, hard disk drives and optical drives. Specific files with the .cdm file extension are needed to bind to specific device types.

The CDM file extension defines disk driver files for Netware, that are not intended for use with other third party back up software like ArcServe. Files with the .cdm file extension can cause conflict with attempts by ArcServe in controlling a tape drive, and can not be allowed to load when the server boots. Generic files with the .cdm file extension can be renamed on both the DOS and NetWare partitions in Netware servers, where the ArcServe Software will be installed.

Novell Netware was developed as a network operating system that was primarily used in cooperative multitasking and to run different services on a computer. The network protocol that was used in creating it was based on Xerox XNS Stack. NetWare has general storage enhancements including the Netware peripheral Architecture, which gives a broader driver support for host adapters and other connected hardware devices. These are Host Adapter Modules in the HAM file extension, which drives the host adapter hardware and Custom Device Modules in the CDM file extension that in turn, drives hardware connected to the host adapter bus.

Author: Novell Inc.
Author URL:
Related Applications: Novell Netware
Common Path: C:/ NWserver/ drivers/


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Do you have errors with .CDM files?

The Cause for .CDM files Errors:

A common and likely reason for .CDM files errors is damage in the Windows registry - cleaning is essential to avoid further corruption in other applications and/or devices. During the time the errors persist your system remains at risk for possible blue screen errors, hardware failure and fatal crashes.

.CDM files Errors - Common Symptoms:

Typical symptoms with .CDM files errors include poor personal computer speed, long program load times, trouble saving documents, excessive suspensions in application functions, programs shuts down without an error, input freezing and applications crash.

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What is the .CDM File Extension?    |    Scan for .CDM File Extension Errors    |    How to Fix .CDM File Extension Errors