Q67206: OS/2 "Path/File Access Error" Instead of "Permission Denied"

Article: Q67206
Product(s): See article
Version(s): 6.00 6.00b 7.00 7.10
Operating System(s): OS/2
Keyword(s): ENDUSER | SR# S901024-38 buglist6.00 buglist6.00b buglist7.00 buglist7 | mspl13_basic
Last Modified: 5-DEC-1990

When attempting to open a file under multiple OS/2 processes or in an
OS/2 networking environment, a BASIC program will incorrectly generate
the error message "Path/File access error" (error code 75) when
attempting to open a locked file. The error message it should generate
is "Permission denied" (error code 70). This problem does not occur in
a DOS networking environment, such as when accessing files on a server
from a DOS LANMAN workstation. Under these conditions, the BASIC
program generates the correct error message, "Permission denied."

This problem occurs in Microsoft BASIC Compiler versions 6.00 and
6.00b for MS OS/2, and in Microsoft BASIC PDS (Professional
Development System) versions 7.00 and 7.10 for MS OS/2. Microsoft is
researching this problem and will post new information here as it
becomes available.

The following test program demonstrates the problem. To reproduce the
problem, compile and run the program in an OS/2 session. Then switch
to a new session and run the same program again. The file should be
locked for writes; the second program is supposed to terminate with a
"Permission denied" error, but instead, displays "Path/file access
error."

Code Example
------------

OPEN "TESTFILE" FOR APPEND LOCK WRITE AS #1
PRINT #1, "Hello"
WHILE INKEY <> "q": WEND

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