5.2

Table Of Contents
QuickPrep Process Privileges
For security reasons, certain Windows operating system privileges are removed from the View Composer
Guest Agent process that invokes QuickPrep customization scripts.
A QuickPrep customization script cannot perform any action that requires a privilege that is removed from
the View Composer Guest Agent process.
The following privileges are removed from the process that invokes QuickPrep scripts:
SeCreateTokenPrivilege
SeTakeOwnershipPrivilege
SeSecurityPrivilege
SeSystemEnvironmentPrivilege
SeLoadDriverPrivilege
SeSystemtimePrivilege
SeUndockPrivilege
SeManageVolumePrivilege
SeLockMemoryPrivilege
SeIncreaseBasePriorityPrivilege
SeCreatePermanentPrivilege
SeDebugPrivilege
SeAuditPrivilege
QuickPrep Script Logs
View
Composer logs contain information about QuickPrep script execution. The log records the start and end
of execution and logs output or error messages. The log is located in the Windows temp directory:
C:\Windows\Temp\vmware-viewcomposer-ga-new.log
Recomposing Linked Clones Customized with Sysprep
If you recompose a linked-clone desktop that was customized with Sysprep, View Manager runs the Sysprep
customization specification again after the OS disk is recomposed. This operation generates a new SID for the
linked-clone virtual machine.
If a new SID is generated, the recomposed linked clone functions as a new computer on the network. Some
software programs such as system-management tools depend on the SID to identify the computers under their
management. These programs might not be able to identify or locate the linked-clone virtual machine.
Also, if third-party software is installed on the system disk, the customization specification might regenerate
the GUIDs for that software after the recomposition.
A recomposition restores the linked clone to its original state, before the customization specification was run
the first time. In this state, the linked clone does not have a local computer SID or the GUID of any third-party
software installed in the system drive. View Manager must run the Sysprep customization specification after
the linked clone is recomposed.
Storage Sizing for Linked-Clone Desktop Pools
View Manager provides high-level guidelines that can help you determine how much storage a linked-clone
desktop pool requires. A table in the Add Pool wizard shows a general estimate of the linked-clone disks'
storage requirements when the pool is created and as the linked clones grow over time.
The storage-sizing table also displays the free space on the datastores that you select for storing OS disks, View
Composer persistent disks, and replicas. You can decide which datastores to use by comparing the actual free
space with the estimated requirements for the linked-clone disks.
VMware Horizon View Administration
106 VMware, Inc.