Contents

CompatibilityFlags

Determines different compatibility settings which relate to specific customer related functionality and should not generally be changed from the default value under normal conditions, unless advised.
Registry valueDefault valueNotesInstaller property
CompatibilityFlags

0x1E18000A (504889354)


For Nomad in full OS, the registry value is set to the sum of the values for the required bits.


The default value combines the following settings:

  • Bit 1  - 0x00000002 - Enable longer values for hashes
  • Bit 3  - 0x00000008 - Fix wrong IPs in election messages
  • Bit 19 - 0x00080000 - Enable full hash generation for SIS content on DPs
  • Bit 20 - 0x00100000 - Abort download on the Nomad client if an LsZ has mismatch is detected
  • Bit 25 - 0x02000000 - Turn off Dynamic Block Size
  • Bit 26 - 0x04000000 - Enable download of Windows 10 Express File Updates
  • Bit 27 - 0x08000000 - Enable download of Software Updates (including Windows 10 feature updates) from Microsoft Update - see note
  • Bit 28 - 0x10000000 - Enable support for byte-range downloads (e.g. Office 365 or delta content for updates) from Microsoft Update - see note

First bit is bit 0. The default in binary is: ‭0001 1110 0001 1000 0000 0000 0000 1010

Support for downloading updates from Microsoft Update

Setting bits 27 and/or 28 will enable Nomad to download content from Microsoft Update if the update has been deployed with Configuration Manager and the option If software updates are not available on distribution point in current, neighbor or site boundary, download content from Microsoft Update has been enabled on the Download Settings tab of the deployment. Nomad will not be used to download updates from Microsoft Update if the update is requested outside of a Configuration Manager Software Update Deployment (e.g. when using Windows Update for Business).

Prior to 1E Client 4.1 (Nomad 7.0) the default was 0x00180000 (1572864):

  • Bit 19 - 0x00080000 - Enable full hash generation for SIS content on DPs
  • Bit 20 - 0x00100000 - Abort download on the Nomad client if an LsZ has mismatch is detected
MODULE.NOMAD.COMPATIBILITYFLAGS
0x00100002 (1048578)

For the task sequence step Install and configure Nomad in Windows PE, the registry value is set to the sum of the values for the required bits.

The default value combines the following settings:

  • Bit 1  - 0x00000002 - Enable longer values for hashes
  • Bit 20 - 0x00100000 - Abort download on the Nomad client if an LsZ has mismatch is detected

Bit 1 - 0x00000002 (Enable longer values for hashes) is mandatory.


The installer property must be set to sum of the values for the required bits, and given in decimal notation. For example, the following installer command-line uses:

  • Default- 0x1E18000A
  • Bit 0  - 0x00000001 - Never check hashes of downloaded content
  • Bit 17 - 0x00020000 - Disable DelegatedLSZ checks and errors
  • Sum    - 0x1E1A000B (505020427)
> msiexec /i 1E.Client-x64.msi MODULE.NOMAD.COMPATIBILITYFLAGS=505020427 [other properties] /qn
BitHexDecimalDescription
00x00011Never check hashes of downloaded content.
10x00022

Enable longer values for hashes. This value is auto-enabled when the Configuration Manager client is detected.

You must manually configure this setting on any DP that does not have the Configuration Manager client installed.

Prior to 1E Client 4.1 (Nomad 7.0) this was disabled (0) by default.

20x00044Calculate CRCs as files are downloading.
30x00088

Fix wrong IPs in election messages.

On multi-homed machines sometimes the IP from a wrong adapter can get sent in the election messages resulting in peers failing to connect to the master. Enabling this flag causes Nomad to correct such IPs at the time when messages are received and thus prevent master connectivity issues.

40x001016Determines compatibility with Nomad v3.x caches. Set this option once all Nomad v3.x installations have been upgraded.
50x002032Disable all RDC data generation.
60x004064Keep Packages that failed the CRC test during P2P or download from DP.
70x0080128Prevent computers using wireless connections from becoming fill-in multicast masters.
80x0100256Include LinkLocal IPv4 addresses.
90x0200512Include LinkLocal IPv6 addresses.
110x08002048RESERVED
120x10004096Do not automatically jump from HTTP to HTTPS during download from DP.
130x20008192Always use HTTPS.   (Use this setting when Configuration Manager is configured to use HTTPS-only communication for downloading content from Distribution Points)
140x400016384RESERVED
150x800032768RESERVED
160x0001000065536RESERVED  (this flag is no longer used; previously this flag disabled a workaround for the issue described in understanding IIS request filtering )
170x00020000131072Disable DelegatedLSZ checks and errors.
180x00040000262144Disable partial download when App-V streaming, i.e. download entire application.
190x00080000524288Enable full hash generation for SIS content when an LsZ file is generated on a DP. If this is not enabled, SIS content is trusted, and corrupted content may be downloaded. Enabled by default.
200x001000001048576Abort download on the Nomad client if an LsZ hash mismatch is detected. If this is not set, when a Nomad client detects a hash mismatch it will re-request LsZ generation on the DP then try again, and get stuck in a loop if the SIS content is corrupt. Must be set on clients if Bit 19 is set on DPs. Enabled by default.
250x0200000033554432

Turn off Dynamic Block Size. This flag is set by default, which means Dynamic Block Size is disabled by default.

Prior to 1E Client 4.1 (Nomad 7.0) this bit was off, meaning Dynamic Block Size was enabled by default.

260x0400000067108864

Enable download of Windows 10 Express update files. Enabled by default.

This is a new setting in 1E Client 4.1 (Nomad 7.0) and Q20144 for NomadBranch 6.3.201.

270x08000000134217728

Enable download of full file software updates from Microsoft Update when deployed through Configuration Manager (see note above). Enabled by default.

This is a new setting in 1E Client 4.1 (Nomad 7.0) and Q20246 for NomadBranch 6.3.201.

280x10000000268435456

Enable download of byte-range software updates (e.g. Express updates, O365 updates) from Microsoft Update when deployed through Configuration Manager >(see note above). Enabled by default.

This is a new setting in 1E Client 4.1 (Nomad 7.0) and Q20246 for NomadBranch 6.3.201.

300x400000001073741824

Enable SoftwareUpdate metadata validation. This is not enabled by default. It can be used to resolve rare issues related to SoftwareUpdates where the contents could be updated without any change in its ID or version. Please refer to Resolving SoftwareUpdate metadata validation for more details.

This is a new setting in 1E Client 5.1 (Nomad 7.0.200).