I can't figure out, how to get efax Messenger Plus working for non-amdin users. I install it under an admin account, and configure it without any problems. When I switch to a non-admin account, and launch efax, it wants to install itself again. I have tried the Run as... admin option within a non-admin user account, and even gave admin rights temporarly, but there seems to be no way around this.
efax support section is almost nonexisting, and doesn't mention anyhting about install problems.