FILE: Comm.exe Updates Virtual Communications Device Driver DOC (181299)



The information in this article applies to:

  • Microsoft Windows 95 Driver Development Kit (DDK)

This article was previously published under Q181299

SUMMARY

Comm.exe is a rewritten and augmented version of the old Vcomm.doc. Serial ports, parallel ports, FAX machines, and modems are examples of communications devices, providing a single asynchronous data stream. The central communications component in Windows 95, the virtual communications driver (VCOMM) is a virtual device (VxD) that manages all access to communications devices. VCOMM relies on port drivers, which are separate VxDs, to access communications devices. A port driver may need to be written to support a nonstandard communications port.

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Modification Type:MinorLast Reviewed:3/21/2005
Keywords:kbdownload kbfile KB181299 kbAudDeveloper