Adding registry value that includes square brackets

[shahareldad]

Question

Hi all

I'm trying to register a value which holds square brackets as follow:

<Component Id="cmpChromeInsecurePrivateNetwork" Guid="{D795493B-E11E-41F6-96F9-1E1C533A422D}">
	<RegistryKey Root="HKLM" Key="Software\Policies\Google\Chrome\InsecurePrivateNetworkRequestsAllowedForUrls">
		<RegistryValue Name="1" Value="[*.]ynet.com" Type="string" />
	</RegistryKey>
</Component>

I got an error:
Package.wxs(80): error WIX0204: ICE03: Invalid format string; Table: Registry, Column: Value, Key(s): regsv1OtejatD1JMYsxznh6bQJilWg [AutoApps_setup.wixproj]

I tried all sort of combinations e.g.
[[].[]]ynet.com
[.]ynet.com
and more, none worked.

Any idea how to do it?

Open Source Maintenance Fee

• I (or an organization I'm a member of) pay the Open Source Maintenance Fee by sponsoring the wixtoolset project because I support the maintainers.

[shahareldad]

In the meantime I got an answer that worked using Claude.ai

I defined a property

<Property Id="DOMAIN_PATTERN" Value="[*.]ynet.com" />

and than used it like this

<Component Id="cmpChromeInsecurePrivateNetwork" Guid="{D795493B-E11E-41F6-96F9-1E1C533A422D}">
    <RegistryKey Root="HKLM" Key="Software\Policies\Google\Chrome\InsecurePrivateNetworkRequestsAllowedForUrls">
        <RegistryValue Name="1" Value="[DOMAIN_PATTERN]" Type="string" />
    </RegistryKey>
</Component>

[robmen]

We leave conversations open so they can be found by search later.

Note, the correct escape is [\[] and [\]] (brutal syntax to try to read) from documentation: https://learn.microsoft.com/en-us/windows/win32/msi/formatted

[shahareldad]

If they are not open they cannot be found? So weird. I will try to remember for next time. Thanks

…

On Sun, Aug 24, 2025 at 10:31 PM Rob Mensching ***@***.***> wrote: We leave conversations open so they can be found by search later. Note, the correct escape is [\[] and [\]] (brutal syntax to try to read) from documentation: https://learn.microsoft.com/en-us/windows/win32/msi/formatted — Reply to this email directly, view it on GitHub <#9153 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABHC4YBZ4TDNBT6HYRV4UGT3PIHIJAVCNFSM6AAAAACEVHAPN6VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTIMRQGM4TCNI> . You are receiving this because you modified the open/close state.Message ID: ***@***.***>

-- Best regards Shahar Eldad Email: ***@***.*** Phone: 052-8421301