If you want to use the command line with the network install, then you will need to add the path to your client directory into the command. For example, instead of using this to run the health check:
"c:\toad\toad.exe" Connect=system/manager@mydb HC=c:\thisfile.txt
You need to use this (where the network server is at "H:\toadserver" and the client is in "c:\toadclient"):
"h:\toadserver\toad.exe" PATH=c:\toadclient Connect=system/manager@mydb HC=c:\thisfile.txt
You can also use the Automation Designer in Toad to schedule many, many tasks within Toad. Please see the online Help within the tool, and there is a video describing the process here:
Start the discussion at forums.toadworld.com