The following information was very, very hard to find online. And it didn't come from LogMeIn. So I'm writing in the hopes that someone else who had LogMeInRescue auto-installed on ones Mac and then spent hours trying to remove it, will find this post and know how to get LogMeInRescue deleted out of the Mac.
As of February, 2013, running both Lion and Mountain Lion (10.8.2), LogMeInRescue will no longer install in Applications, nor show up in Spotlight. It is also not in in Login Items in System Preferences. It no longer has an uninstaller, and will automatically open up at every fresh startup, even when you quit the application.
Here's how to locate the file and delete it :
1. In Finder, hit Command-F, to open up a deeper version of Spotlight (do not use Spotlight in the upper right corner)
2. In the Search criteria near the top, select "System files" and "ARE included."
3. In the Search field, type LogMeIn (Or the full LogMeInRescue, but it's best to find anything associated with this thing)
4. A hidden file will appear in the results field, revealing the following path:
Main Drive: private: var: tmp
5. The files associated with LogMeIn can be found in this tmp folder. Drag them to the trash, empty the trash, then restart the Mac. The LogMeInRescue will now be gone.
I'm no software writer. But as a heavy Mac user for over 20 years, I've never seen an application that was this difficult to locate and remove from my Mac.
At the very least, this information should be located on a prominent place on the LogMeIn site. It should also be given to all LogMeIn tech people, so they know this above process for removing it from their clients' Macs once they're done.
Scott
owner, Brain Toniq
Boulder, CO