Problem:

Can Mainframe Access Wrappack WS01 be applied to Mainframe Access v3.0?

Resolution:

If you are running Mainframe Access / Host Connectivity v3.0, the latest fixpack that can be applied to that version is WS10.  

If you wish to apply the latest available fixpack for Mainframe Access / Host Connectivity, you need to install the v3.1 base release first, and then apply WS01.

The CD for Mainframe Access / Host Connectivity v3.1 is available with Mainframe Express v3.1 only, it is not available as a standalone product.