We use to use the notes field to keep plain text service information for clients which can be seen in the vmx files.
This was easy with the standalone vsphere client.
Now with the the web interface on the summary tab there is the "Notes" filed and an "Edit Notes.." link
This opens an applet with a text entry box.
Alas, this box does not allow mulltiple lines and it also adds strange characters into the .vmx files like 0A or 7C.
What is going on here?