Runs tallow from the Wix toolset
| Attribute | Description | Required | 
| source | The single source directory to process. | Either this or at least one nested <sources> set. | 
| target | The expected target file. | Yes | 
| vm | Same as dotnetexec's vm attribute. Specify the framework to use. | No. | 
| wixHome | Installation directory of WiX. | No - Ant will assume WiX is on your PATH otherwise. | 
Specify source directories that shall be passed on the command line. This is a dirset.
Specifies additional arguments for talow
arg is
      a command
        line argument.
Create product.wxs from product directory:
      <tallow source="product" target="product.wxs"/>
    
    Create product.wxs from bin,docs,
    and conf under product directory:
      <tallow target="bin.wxs"/>
        <sources dir="product", includes="bin,docs,conf"/>
      </tallow>
    
    Create product.wxs from bin,docs,
    and conf under product directory:, and
    set all files vital
    
      <tallow target="bin.wxs"/>
        <sources dir="product", includes="bin,docs,conf"/>
        <arg value="-dav"/>
      </tallow>
    
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