It sits in C:\applications\FarmMonitor
I run it as a published application.
It looks like I have my original file in C:\applications\farmmonitor, but there is a more recent file in C:\Program File (x86)\Citrix\Inde.... directory.
The key is that one the cfg file is established, all the settings remain, but the location of the DSN is not kept in the CFG file; therefore, the application asks you to find the DSN (in my x64 environment), which in turn sets up a NEW cfg file. If I ESC from searching for the DSN, I get my CFG with all my options, but the Datastore field is now blank (yet green, which I find odd).
To confitm that this is all x64 related, I ran it on a x86 server, and everything was fine.
BTW, the program won't run from a UNC. That would be a nice feature so I don't have to have a copy of it everywhere.
This might has something to do on how you startup Farm Monitor. It saves the options file in the default directory.
The only way to fix is, is to create a short-cut to the .exe and have the 'run in' configured properly.
Once Farm Documentor gets its own installer, this problem should not occour annymore.