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Networks - Files Disappearing When Saving Doc |
The information in this document applies to:
WordPerfect® 5.1 for DOS
Problem
Solutions: Files disappearing or erasing on a network for no apparent reason can be a real problem. Sometimes it is operator error, but there is another error that will cause the document to be deleted. If a customer on a network claims their file was deleted when trying to save it, they are probably right. This problem will almost never happen on a stand-alone or when saving to a local drive. WordPerfect uses DOS to save its files. DOS does not have a way to save over a file. So, to update a file you must delete it first and then save the new file in its place. When WP saves a file, it has to delete the original file on disk before it saves what is in memory or in the temporary files. WP will wait for an "Error 0000," which means that there was no problem and the file was saved correctly. Or another error can occur which means the file was not saved and there was a problem. WP in this case would tell the user what the problem was and wait for the user to decide what to do. A good example is the error "Access Denied." DOS tries to save the file somewhere to which it does not have rights. The network returns an "Error 5" which means "Access Denied." WP would trap the "Error 5," tell the user they were denied access, and then prompt them to do something. Understand that a network intercepts some executive DOS functions to make them work under a network environment. The network is also more complicated and doing many things with many users. You might say that a network environment really stretches DOS. If a file being saved on a network environment encountered an error or something (from an unknown cause) and the network was not able to communicate the error to DOS, and DOS did not send back the correct error, but sent back to WordPerfect an "Error 0000," the file could be deleted or set to 0 bytes. There is not much WP can do about it. If they set Original Backup to Yes, it will always have a copy of the old file before it saves. Or, if they have a backup of their network, the old file could be retrieved from there. It is a rare problem and not a WordPerfect one. Be careful! Do not blame the network company or DOS. WP cannot duplicate this problem nor can the network companies. |
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