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Err Msg: No Disk in Drive

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This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
IMPORTANT: This article contains information about editing the registry.Before you edit the registry, make sure you understand how to restore it ifa problem occurs. For information about how to do this, view the "Restoringthe Registry" Help topic in Regedit.exe or the "Restoring a Registry Key"Help topic in Regedt32.exe.

When you open or receive mail in the Microsoft Exchange client, one of thefollowing error messages may occur:
Exchng32.exe - No Disk
There is no disk in the drive. Please insert a disk into <drive>:
WMS Spooler: Mapisp32.exe - No Disk
OleMainThreadWndName: Mapisp32.exe - No Disk
NOTE: If you select the Abort option, the message box clears. SelectingRetry or Ignore only works if a floppy disk is inserted into the drive.
This problem occurs when the PATH statement in the Autoexec.bat file,Windows NT System Environment Variables, or User Environment Variablesfor <user name> refers to a floppy disk drive or CD-ROM drive.

If the Autoexec.bat file refers to a floppy disk or CD-ROM drive, WindowsNT 4.0 does not display the error when you log on, but when you runapplications.
To work around this problem, you should either have a disk in the drive orremove the entry from the PATH statement.

The drive letter may not be entered in the PATH statement, but maybe found in the following registry location:
Delete the entry here and log back in.

WARNING: Using Registry Editor incorrectly can cause serious problems thatmay require you to reinstall your operating system. Microsoft cannotguarantee that problems resulting from the incorrect use of Registry Editorcan be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys AndValues" Help topic in Registry Editor (Regedit.exe) or the "Add and DeleteInformation in the Registry" and "Edit Registry Data" Help topics inRegedt32.exe. Note that you should back up the registry before you edit it.
More information
When a user logs on to their account, Windows NT searches for anAutoexec.bat file in the root directory of drive C. If the file is found,Ntvdm.exe appends its PATH environment variable to the system PATHenvironment variable. Only the DOS virtual machine (VDM) PATH variable isaffected.

Ntvdm.exe tests the PATH statement for validity. If the drive physicallyexists, Ntvdm.exe tests for the drive type (removable media or fixed). Ifthe drive is a floppy disk or CD-ROM, Ntvdm.exe tests for the presence ofvalid media. If no valid media is found, the error message is displayed. Ifinvalid drives are used in the Autoexec.bat PATH statement, no errormessage is displayed; however, the PATH variable in any previously openedVDMs may be invalid.

For more information, please see the following Microsoft Knowledge Basearticle:
102418NTVDM Error: There Is No Disk in the Drive

This problem can also occur after you save an attachment to removablemedia, and then eject the media. For example, when you save an attachmentto a zip drive, and then eject the disk and attempt to open anothermessage, the error message appears. To work around this problem, insert anew disk in to the same drive and open a message.

Article ID: 163633 - Last Review: 06/22/2014 18:13:00 - Revision: 4.0

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