Wix CustomAction Binary SourceFile not found

<Binary Id="binUpdate" SourceFile="c:\xxx\Update.exe"/>

<CustomAction Id="Update" BinaryKey="binUpdate" Execute="deferred" ExeCommand="c:\xxx" />

When I build a Wix project with the above custom action, it complains that "The system 开发者_Python百科cannot find the file 'C:\xxx\Update.exe".

This update.exe is deployed by the same msi. So, how do I make Wix to ignore the fact that the file does not exist on my build machine?

Thanks in advance

You can drop the executable in the same folder as your "Product.wxs" file and doing something like this...

<CustomAction Id="Update" FileKey="Update.exe" ExeCommand="param1" Execute="immediate" Return="asyncNoWait" />;

Here is a link at codeprojects