Is it necessary to install AIDA64 on all workstations in the network in order to make a network audit of all networked computers?
No, and it is not recommended either. Instead, AIDA64 files can be copied to a file server in a shared folder from which all network users can access the AIDA64 files. AIDA64 then can be launched from any computer using a shortcut such as:
\\server\share\aida64folder\aida64.exe
As a further step, the command-line can be extended with network audit options, and then it can be added to the users' logon script that will be executed at the logon of each network user.
Example:
\\server\share\aida64folder\aida64.exe /R \\server\share\reportsfolder\$HOSTNAME /AUDIT /CSV /SAFE /SILENT
A complete list of command-line options with explanations is available in the user's manual.