I've a question about creating an installer with WiX.
In my SharePoint development I have three different features. They are all installed with a separate WSP.
One of the WSPs (called A.wsp) contains another WSP (B.wsp) (it's the basic for the program). Every wsp can be installed for it's on.
How can I check when uninstalling A.wsp if B.wsp was installed before? When B.wsp was installed separately before, it should not be removed when uninstalling A.wsp.