Store your resources in a central location
Another option is to store your AFP resources on any machine in your network (including the host system that they currently reside on), and NFS mount a directory on the Windows system that your InfoPrint Manager server is installed on to that machine. Then, identify that directory to InfoPrint Manager just as in the option above (either by using a resource context object or by changing the default resource search path). To implement this option, you will need to install NFS server and client software, which is available from a variety of vendors.
The main drawback to this solution is that it generates a significant amount of network traffic as the system retrieves the resources. The increase in traffic and time needed to retrieve the resources when needed could cause printer clutching.