You can configure svservice with the following registry keys and optionally configuring the values in the HKLM\SYSTEM\CurrentControlSet\services\svservice\Parameters registry key.

svservice Log Deletion Policy

If a backup svservice log file meets either of these policy rules, the log file is deleted:
  • If the aggregate size of all the backup log files is greater than a designated number, then svservice starts the deletion from the oldest backup log file until the aggregate size is lower than the designated number.

    You can use the BackupLogFileSizeInKB parameter to set the designated aggregate size of all backup log files.

  • If a backup log file is older than the designated number of days, the log file is deleted.

    You can use the BackupLogFileDays parameter to designate the number of days for the log deletion policy.

svservice Parameters

Parameter Type Description
LogFileSizeInKB REG_DWORD The size of the log file before rotating the log file.
The default value of this parameter is 15360MB (15MB) and the maximum value of this parameter is 51200 (50MB).
Note: If the parameter is set to a value greater than the maximum value or 0, svservice uses the default value as the value of this parameter.
BackupLogFileSizeInKB REG_DWORD The aggregate size of all svservice backup log files.

If the aggregate size of all backup log files is greater than the value of this parameter, svservice starts the deletion from the oldest backup log file until the aggregate size is lesser than the value of this parameter.

The default value of this parameter is 768000 (750MB) and the maximum value is 3584000 (3500MB).
Note: If the parameter is set to 0 or greater than the maximum value, svservice uses the default value as the value of this parameter.
BackupLogFileDays REG_DWORD The maximum age of svservice backup log files.

If a svservice backup log file is older than the value of this parameter, the backup log file is deleted.

The default value of this parameter is 15 days.
MaxDelayTimeOutS REG_DWORD The maximum wait for a response from the App Volumes Manager, in seconds. If set to 0, the wait for response is forever. The default is 300 seconds (5 minutes).
ResolveTimeOutMs REG_DWORD Defined in milliseconds for name resolution. If resolution takes longer than the timeout value, the action is canceled. The default is 0, which waits for completion.
ConnectTimeOutMs REG_DWORD Defined in milliseconds for server connection requests. If a connection request takes longer than this timeout value, the request is canceled. The default is 10 seconds.
SendTimeOutMs REG_DWORD Defined in milliseconds for sending requests. If sending a request takes longer than this timeout value, the request is canceled. The default is 30 seconds.
ReceiveTimeOutMs REG_DWORD Defined in milliseconds to receive a response to a request. If a response takes longer than this timeout value, the request is canceled. The default is 5 minutes.
ProvisioningCompleteTimeOut REG_DWORD Defined in seconds to keep trying to contact the App Volumes Manager after provisioning is completed. The default is 120.
DomainNameWaitTimeOut REG_DWORD Defined in seconds how long to wait for the computer during startup to resolve Active Directory domain name. On machines that are not joined to any domain, you can set the value to 1 for faster login. The default is 60.
DelayVirtualizationType REG_DWORD Defers application virtualization at end user login and helps in improving the user login time.
Values of this parameter are as follows:
  • 0 - Applications are virtualized (enabled for end user)) as soon as the end user enters the login credentials.
  • 1 - Applications are virtualized after the end user enters the login credentials.
  • 2 - Applications are virtualized just before the desktop is visible to the end user.
  • 3 - Applications are virtualized a few seconds after the desktop is visible to the end user.

The default value of this parameter is 2.
WaitInstallFonts REG_DWORD Defines how long to wait in seconds for fonts to be installed. The default is to not wait for completion.
WaitUninstallFonts REG_DWORD Defines how long to wait in seconds for fonts to be removed. The default is to not wait for completion.
WaitForFirstVolumeOnly REG_DWORD Defined in seconds, only hold logon for the first volume. After the first volume is complete, the remaining are handled in the background, and the logon process is allowed to proceed. To wait for all volumes to load before releasing the logon process, set this value to 0. The default is 1.
Note: When WaitForFirstVolumeOnly parameter is set to 0, svservice implicitly sets the DelayVirtualizationType parameter value to 0.