Microsoft KB Archive/102406

= Fastback Runs Very Slowly with Windows NT =

Article ID: 102406

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Advanced Server 3.1
 * Microsoft Windows NT Workstation 3.1
 * Microsoft Windows NT Advanced Server 3.1

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This article was previously published under Q102406





SYMPTOMS
Fifth Generation Systems Fastback and Fastback Plus run very slowly in Windows NT.



CAUSE
This problem occurs because Fastback directly programs the floppy disk controller (FDC) to increase the speed of floppy disk reads and writes.

Unfortunately, Windows NT has to trapping all input and output in the virtual DOS machine (VDM), which causes the floppy reads and writes to be slower instead of faster.

Additional query words: prodnt I/O

Keywords: kb3rdparty KB102406

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