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Disk Error 34 "Invalid Disk Change" |
The information in this document applies to:
WordPerfect® 5.1 for DOS
Problem
Symptoms: The customer is running WP 5.1 and saving files to a diskette in the A: drive. He saves the first copy of a document on a disk and everything works fine. When he tries to save the document again to a second disk, he receives the message "Disk Error 34, Invalid Disk Change". This error only happens when he uses a disk formatted from another version of DOS. The error does not occur if the customer uses disks formatted in the same version of DOS as the first disk. The user feels that running SHARE.EXE in the CONFIG.SYS file will not allow him to change the disks if they are different DOS versions. He is running SHARE.EXE because the hard drive is larger than 32M. Solutions: If SHARE.EXE is looking for a volume name, the problem lies with SHARE.EXE and not with WP. There may be user's with volume labels who experience this problem, but WordPerfect has no control over that because WP it does not attempt to read volume names. When the user unloaded SHARE.EXE, the error did not occur. The user did some research and found that SHARE.EXE reads the volume label on the diskette to determine whether it is the same disk or not. He then loaded SHARE.EXE again and used two floppies with the same volume name and did not have the problem. However, this will be a problem to users who give a volume name to floppy disks. In a similar situation, the customer received "Disk Error 34" when trying to save a file to a floppy disk after retrieving the document from a different floppy disk. The customer found that SHARE will protect the user when changing disks by issuing an error when the file is still open and the disk has been removed. To correct the problem the user needs to make sure the file is closed before removing the disk. Besides the SHARE.EXE file causing this error message, FASTOPEN will also give the same error message. By taking FASTOPEN out of the CONFIG.SYS file, the problem is corrected. One user found they could eliminate the error by adding a line that reads SHELL=C:\DOS\COMMAND.COM just above the line for SHARE.EXE in the CONFIG.SYS file. Another customer received the message "Disk Error 34" when trying to retrieve two different documents into WordPerfect from different floppy disks. Copying the files to the same disk, then retrieving solved the problem. FYI: SHARE caused the same problem (when saving a file to two diskettes) and generated "Disk Error 34" for a customer using WordPerfect 5.1 under MS-DOS 4.01. However, all diskettes were formatted with the same version of DOS. Three possibilities to try to avoid the "Disk Error 34" message are: First, repartition the hard drive so that SHARE is no longer needed. Second, go back to an earlier version of DOS (3.3) that doesn't use SHARE. (These two options will involve erasing everything from the hard drive and reinstalling. The customer would need to make a backup of the entire drive). Third, upgrade to DOS 5.0. DOS 5.0 does not require SHARE for large drive partitions. The customer should understand that these are suggestions only. Note: Memo 21044J in the WPWIN51 infobase also contains related information. |
Answer:
Details:
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