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Visual FoxPro 9.0 SP2 Error writing to file "file" (Error 1105)

I have a Windows Xp Pro Machine that is running MS Visual FoxPro 9.0 applications
These applications ran from a scheduled task that is handled by the task manager.
These apps access data bases on a network share but from time to time Fox Scheduler tries to write to one of the files and it errors out with this message

Visual FoxPro 9.0 SP2
Error writing to file "file" (Error 1105)
The operating system returned an error while Visual FoxPro was attempting to write to the specified file. Most often, this error occurs when attempting to write to a write-protected disk.
But this machine has access to the file and it work majority of the time just once in a while it will error out.
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ahmad1467
Asked:
ahmad1467
1 Solution
 
Ganesh Kumar ASr Infrastructure SpecialistCommented:
The operating system returned an error while Visual FoxPro was attempting to write to the specified file. Most often, this error occurs when attempting to write to a write-protected disk or the file might be used or diskspace issue or clean the temp files and try (C:\windows\temp and profile temp folder).

Errorcodes : http://msdn.microsoft.com/en-us/library/aa979346(v=vs.71).aspx

It appears like network share doesn't have read & write permission. Check the permission the issue will be resolved.
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Olaf DoschkeSoftware DeveloperCommented:
As this is only temporary a reason may be your task is locking itself out.
To which files do you write? DBFs via SQL or REPLACE? or txt files via FOPEN/FWRITE?

Any way, a file always can only be written to by one process at each time, that's deep in the OS and not only valid for DBFs, but any type of files. You can read shared, but never write shared, so the best thing to do is put write operations into try/catch and repeat unsuccessful writes after a random timeout (otherwise two processes using the same timeout might deadlock themselves in sync).

You may well have a branch of your code not closing a file and causing a long term lock, this or similar reasons should of course be found and eliminated.

Bye, Olaf.
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pcelbaCommented:
Error 1105 is low level OS error and appears namely on unstable network connections. The problem is in your network hardware (90%) or in some software which can prohibit the file access (e.g. some incompatible antivirus or backup software).

Any connection dropout during the write operation can cause this error. You may simulate it by disconnecting network cable during the write operation...

Neither permissions nor simultaneous data access can cause this error. These events are solved at higher level.

When the error 1105 appears your data may become inconsistent or even corrupted. Reindex and data integrity check is highly recommended after this error occurrence.
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