PK49340: Invalid MS-DOS function error on Windows Vista copying file larg er than 256 KB from dynamic view

APAR status

• Closed as Vendor Solution.

Error description

• Invalid MS-DOS function error occurs on Windows Vista if I
  try to copy a file larger than 256 KB from a dynamic view.
  
  Steps to repro:
  1. Install ClearCase (server) 7.0.1 on supported Windows OS.
     Use this as the view, VOB and registry server
  
  2. Create a VOB and a dynamic view
  
  3. Install ClearCase (client) 7.0.1 on Windows Vista
  
  3. On the Windows Vista client, add a file to source control
     using the view and VOB created in Step No. 2.
  
  4. Right-click the file in ClearCase Explorer, select Copy,
     right-click the Desktop in Windows Vista and select
     paste.
  
  If the file is 262143 bytes or less, the file copies
  succesfully. If the file is 262144 bytes or more, the error:
  'Invalid MS-DOS function' occurs.
  
  Same error occurs if you use drag-and-drop rather than copy
  paste mechanism. If you try to copy from the comnmand line,
  the error is 'Invalid function'.
  
  The problem only occurs on files added to source control,
  not with view private files.
  
  Workaround:
  Checkout the file before copying it. If the file is checked
  out, the file copies sucessfully.
  

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

• ************************************************************
  * USERS AFFECTED: All ClearCase Windows Vista dynamic view
  * users
  ************************************************************
  * PROBLEM DESCRIPTION: Copying files larger than 256K under
  * source control causes error: 'Invalid MS-DOS function'.
  ************************************************************
  * RECOMMENDATION: Get fix from Microsoft KB.
  ************************************************************
  
  This is a Microsoft defect described in Knowledge Base
  article: http://support.microsoft.com/kb/941673.
  
  Use the registry fix in the KB article or obtain the fix
  from Microsoft.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels