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VMware ESXi 4.1, Patch ESXi410-201101202-UG: Updates ESXi 4.1 VMware Tools (1027921)



Product Versions ESXi 4.1
Build For build information, see KB 1029354.
Patch Classification Critical
Severity Critical
Host Reboot Required No
Virtual Machine Migration or Shutdown Required No
PRs Fixed 548376, 566764, 574678, 591179, 591170, 622617, and 612116
Affected Hardware N/A
Affected Software N/A



Summaries and Symptoms

This patch fixes the following issues:

  • Quiesced snapshots might fail on some non-English versions of Windows guest operating systems, such as French versions of Microsoft Windows Server 2008 R2 and Microsoft Windows 7 guest operating systems. This issue occurs because the VMware Snapshot Provider service does not get registered as a Windows service or as a COM+ application properly on some non-English versions of Microsoft Windows guest operating systems. This issue causes the whole snapshot operation to fail, and as a result, no snapshot is created. The issue is resolved by applying this patch.

  • Creation of quiesced snapshots might not work on non-English versions of Microsoft Windows guest operating systems. The issue occurs when a Windows known folder path contains non-ASCII characters, for example, in the case of the application data folder in Czech Windows guest operating systems. This issue causes the snapshot operation to fail. The issue is resolved by applying this patch.

  • Installation of Microsoft Windows Server 2003 guest operating systems on VMware Paravirtual SCSI (PVSCSI) virtual hard disk fails with the following error:
    Insert the disk labeled:
    VMware PVSCSI Controller Disk
    into drive A:

    The error occurs because txtsetup.oem file on a floppy disk points to the incorrect location of the PVSCSI driver. With this patch, the location is corrected.

  • If you install VMware Tools on a virtual machine on which the Print Spooler service is stopped (Administrative Tools > Services > Print Spooler), and if you select the Thin Print feature (Install VMware Tools > Typical or Custom and select Thin Print under Custom Setup > VMware Device Drivers), uninstalling VMware Tools results in the following error message: Runtime Error! Program: C:\Program Files\VMware\VMware Tools\TPVCGateway.exe. This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. Click OK to remove the error message and uninstall VMware Tools. In this patch, the error message does not appear.

  • Windows guest operating systems installed with VMware Windows XP display driver model (XPDM) driver might fail with a vmx_fb.dll error and display a blue screen. The issue is resolved by applying this patch.

  • In this patch, the Windows Display Driver Model (WDDM) driver is updated to fix some infrequent issues where a Windows virtual machine fails and displays a blue screen.

  • The Update Tools button for performing VMware Tools upgrade from a Windows guest operating system is disabled for non-administrators. The Update Tools button is available under the Options tab of the VMware Tools Properties window. Also, options in the Shrink and Scripts tabs in the VMware Tools Properties window are disabled for non-administrators. To block VMware Tools upgrades for all users, set the parameter to TRUE in the VMX file. This patch contains only a UI change that disables the Updates Tools button for non-administrators, and does not block upgrades from custom applications.

  • When creating a snapshot of a Microsoft Windows Server 2008 R2 virtual machine that has vCenter Server 4.1 installed, the snapshot operation might fail to complete. This issue occurs on Microsoft Windows Server 2008 R2 virtual machines when the ADAM database is installed. The issue is resolved by applying this patch.

Deployment Considerations

None beyond the required patch bundles and reboot information listed in the table above.

Patch Download and Installation

The typical way to apply patches to ESXi hosts is through the VMware vCenter Update Manager. For details, see the VMware vCenter Update Manager Administration Guide.

Download the patch zip file from and install the bulletin using the vihostupdate command through the vSphere CLI. For more information, see the vSphere Command-Line Interface Installation and Scripting Guide and the vSphere Upgrade Guide.

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


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