Referencing a compressed payload for the managed bootstrapper application prerequisite eula

Referencing a compressed payload for the managed bootstrapper application
prerequisite eula

I'm building a setup bundle which needs to work in a non-internet
connected environment, so I am including the .NET 4.0 framework installer,
and its corresponding eula in the bundle. I copied the source from
wix37-sources\src\ext\NetFxExtension\wixlib\NetFx4.wxs but with some
modifications so that the package is compressed instead of a remote
payload.
However, I haven't been able to figure out how to make the eula link load
the payload from the bundle. I always get:
[0930:0BDC][2013-08-22T16:02:37]e000: Error 0x80070002: Failed to launch
URL to EULA.
Here's the wix source:
<!-- Referencing the NetFx40Full package will cause these WixVariables to
be defined -->
<!-- which indicates to the bootstrapper engine what the MBA dependency is
-->
<WixVariable Id="WixMbaPrereqPackageId" Value="NetFx40Full"/>
<WixVariable Id="WixMbaPrereqLicenseUrl" Value="NetFX_4_all_FINAL_RTM.rtf"/>
<PackageGroup Id="NetFx40Full">
<ExePackage
Id="NetFx40Full"
InstallCommand="/q /norestart /ChainingPackage
&quot;[WixBundleName]&quot;"
RepairCommand="/q /norestart /repair /ChainingPackage
&quot;[WixBundleName]&quot;"
UninstallCommand="/uninstall /q /norestart /ChainingPackage
&quot;[WixBundleName]&quot;"
PerMachine="yes"
DetectCondition="NETFRAMEWORK40"
Vital="yes"
Permanent="yes"
Protocol="netfx4"
SourceFile="$(var.SourceRoot)\Deployment\Packages\.NET Framework
4.0\dotNetFx40_Full_x86_x64.exe"
Compressed="yes">
<Payload SourceFile="$(var.SourceRoot)\Deployment\Packages\.NET
Framework 4.0\NetFX_4_all_FINAL_RTM.rtf"
Compressed="yes"/>
</ExePackage>
</PackageGroup>
Is this actually possible?