I've been using a VFP (v6.0) app to invoke Hummingbird's Host Explorer v6.2 OLE functions as a means of automating various interfaces with our mainframe. Things go along nicely for a while and then Host Explorer (and VFP, and everything else) freeze up. Once I end the Host Explorer session, everything springs back to life. I suspect there's some memory problem. I've done everything I could think of to optimize my VFP app. Has anyone else tried to use Host Explorer? Has anyone encountered this kind of problem? Any ideas, help, etc., would be much appreciated.