如何让一个补丁针对具有不同产品代码的多个MSI？

I have 64-bit and 32-bit MSI releases of a product. In order for these releases to be treated as independent products so that for example, a 64-bit patch is not accidentally applied over 32-bit release MSI, and vice-versa, I assigned them different product codes. However, I would also like to be able to have one single patch applicable to both 32-bit and 64-bit - since all I patch is dlls and occasional exe.I have 64-bit and 32-bit MSI releases of a prod