.NET程序集绑定失败（带有重定向的不同版本），很奇怪！

I'm trying to troubleshoot an application built against version 9.1 of a vendor's libraries on a machine that has their 9.3 version installed. The vendor provided a publisher policy file that redirects all versions from 9.0 onwards to their 9.3 dlls, and it is installed in the GAC.I'm trying to troubleshoot an application built