Article ID: 107056
Article Last Modified on 10/12/2003
APPLIES TO
- Microsoft Windows for Workgroups 3.1
- Microsoft Windows for Workgroups 3.11
This article was previously published under Q107056
SYMPTOMS
When a workstation uses File Manager to examine the directory tree of
a CD-ROM mounted on a Windows for Workgroups file server, the Windows
for Workgroups network may stop responding (hang) until the file
server machine is rebooted.
This problem does not occur if you access the CD-ROM from the machine
sharing the disk. Also, this problem may not occur if you are
accessing the shared CD-ROM over the network after the local machine
has read the directory structure.
CAUSE
This problem occurs with specific CD-ROM directory structures. For
example, CD-ROMs included with the following software packages cause
this problem:
CorelDRAW 3.0b
SIMTEL20 Collection
CICA Windows Collection
The problem seems to be with the way the sector buffers are being handled.
WORKAROUND
You may be able to work around this problem by increasing the /M: switch
value and adding the /E switch. For example:
c:\dos\mscdex.exe /d:mscd001 /m:100 /e /s
For this to work, you'll need to use EMM386.EXE (or a third party expanded
memory manager) to expanded memory services (EMS) memory. For example:
device=c:\windows\emm386.exe 1024 RAM
It is possible to determine how much expanded memory is needed by using the
MSCDEX /V (verbose) switch and inserting a PAUSE statement after the MSCDEX
line in your autoexec.bat file. For example:
c:\dos\mscdex.exe /d:mscd001 /m:100 /e /s /v
pause
STATUS
Microsoft has confirmed this to be a problem in Microsoft CD-ROM Extensions
(MSCDEX.EXE) versions 2.21, 2.22, and 2.23. We are researching this problem
and will post new information here in the Microsoft Knowledge Base as it
becomes available.
Additional query words: 3.10 3.11 compact disc
Keywords: KB107056