NetCrunch can be installed in minutes - no additional downloads needed. It can be run on any Windows machine (Windows 7 or newer).
For server monitoring, it does not require SNMP to be installed on Windows (or Linux, Mac OS X or BSD) and uses Active Directory managed access rights to Windows servers (it can be used also in a Workgroup environment).
NetCrunch discovers your network in a few minutes, then checks to see which services are running on each node.
After NetCrunch recognizes a particular device type, it automatically starts monitoring it, and sets alerts for the device (using Monitoring Packs). If a device type can't be recognized, you can quickly set an appropriate device type manually.