Not able to resolve variable in preprocessor extension

[CharanGali]

Question

Hi @robmen

In WiX project, We have defined few variables in .wxi file and including the .wxi file in .wxs using <?include $(sys.CURRENTDIR)\Includes\Common.wxi?>

We also have preprocessor extension with custom attributes say customattrib and when i define the component as below.

      <Component Id="custom.dll" Guid="{XXXXX}" cuscom:customattrib="yes">
        <File Id="custom.dll" KeyPath="yes" Source="$(var.BinFileFolder)\custom.dll" />
      </Component>

In this case - cuscom is xmlns namespace, customattrib is custom attribute, var.BinFileFolder is variable defined in .wxi file

In WiX3 During Preprocessing by preprocessor extension(cusotm), var.BinFileFolder is resolved with file path. In WiX5, we could you see raw data without variable resolution.
Is there any alternative for this ?

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[CharanGali]

@robmen Could you please share more insights on this latest change in WiX4 or WiX5 ?