Remote task manager
Remote task manager needs no installation, just unzip it to some folder and start it. With this program you can kill remote process, shutdown remote computer, change remote computers domain, view system information of remote computer, send message (works if you have messenger service... It requires no installation on remote machine!
http://www.filelodge.com/files/hdd5/102748/demo_v1_3.zip - 932Kb - Download - Screenshot

EMCO Remote Desktop Professional
EMCO Remote Desktop Professional is a remote desktop management solution for professionals, education and business in a wired and wireless Microsoft network Reduces administration costs and enhances productivity all from a central location Software and Hardware information gathered from remote... Multiple Service Installation The professional version has built-in special dialog where you can manage and deploy the Remote Desktop Pro service across your remote client? ... s Remote Desktop Professional can scan your remote client?
http://www.emco.is/download/remotedesktoppro/remotedesktoppro.zip - 4Mb - Download - Screenshot

JM Pager
JM Pager is a special corporate "pager" for work in TCP/IP networks on Windows ® platforms (95/98/Me/NT4. 0/2000/XP/2003). Primary aims - remote administration of client computers in a network & messaging tool for users. Features Common: Message sending. ... Get remote system information. ... Shutdown remote computer / Restart remote computer. ... Get computer's database (information about all remote computer's hardware, software). ... List current processes on remote computers. ... Kill process in remote systems.
http://www.jmpager.com/files/pager_e.exe - 2Mb - Download - Screenshot

LANVisor
LANVisor allows you to see the screens of multiple computers connected to the local area network. You can use the software to see what users do on remote computers and automatically take screenshots . Also, the system is compatible with the RealVNC - a freeware utility allowing you to control... The Server's basic features: - Ordered listing of remote computer screenshots - Displaying actual-sized screenshots in a separate window with advanced functions - Managing individual clients or all clients simultaneously - Displaying information on available hard disk space on a remote computer -...
http://www.lanvisor.com/LVSetup.exe - 1Mb - Download - Screenshot

Remote Vaccine - Classroom
Remote Vaccine is a powerful yet easy-to-use networking utility that delivers robust classroom control functions: * Take full control of the remote workstation using the administrative mouse and keyboard. * Control several computers simultaneously. * Locking/Unlocking Remote workstations... * Get system information about remote computer(s). ... * Dynamically change system restrictions (Policies) on remote computer(s): access to items such as Control panel, Startmenu, desktop and network properties.
http://www.horizondatasys.com/downloads/rvsetup_v41683.exe - 1Mb - Download - Screenshot

CallerIP
CallerIP monitors activity on open ports on your system, which are often not protected by firewall's, and identifies backdoor's that could allow harmful Trojan's to steal your information. Connections are monitored in realtime and identified by country, a click on an IP address shows the city... Connections to your system are provided in real-time, including the connection time, remote and local IP address, country of origin, remote and local ports being accessed. ... CallerIP actively scans the ports on your system and alerts you to any backdoor's or active HTTP/FTP/SMTP services, which...
http://download.visualware.com/pub/cip/cip.exe - 2Mb - Download - Screenshot

Network Asset Monitor
Network Asset Monitor allows you to create a network inventory. This program gives you possibility to get quick and complete information about operating systems, service packs, hotfixes, hardware, installed software and running processes on remote PCs fast. ... You can get screen shots from remote computer and send message to remote PC. ... Also you can create reports about hardware, installed software and running processes on computers in your local network.
http://www.misutilities.com/namonitor.exe - 1Mb - Download - Screenshot

DPAN
Free Utility - New Disk Performance Analyser for XP Networks Reports severe fragmentation related performance loss on your networked systems! The Performance Analyser provides never before available single-point analysis of systems requiring defragmentation attention to achieveoptimal performance. ... The agent quickly and unobtrusively gathers disk fragmentation information from the remote computers and reports this data to the Disk Performance Analyser for Networks main console. ... The agent then completely removes itself from remote client systems.
http://demodl.element5.com/50154/DPenFRSN2Xi1_0_104.exe - 5Mb - Download

ipCompiler
IPCompiler very fast system and network diagnostic tool. It puts you into the position to accomplish complete diagnosis and/or stocktaking of your system and network hardware. ll information can be raised both from local or from a remote system. You do not need any additional software on the... privileges at the targetmachine - Information about: CPU, OS, Servicepack, logged user and much more. ... Ipcompiler pings each IP address to check if it's alive, then optionally it is resolving hostname, MAC-Address and - if you have admin.
http://www.vs-net.com/ipcompiler/ipc.zip - 5Mb - Download - Screenshot

Disk Performance Analyzer for Networks.
The Disk Performance Analyzer for Networks is a stand-alone utility that detects and reports fragmentation-related performance loss on networked systems. The Performance Analyzer provided never before available single-point analysis of systems requiring defragmentation attention to achieve... The agent quickly and unobtrusively gathers disk fragmentation information from the remote computers and reports this data to the Disk Performance Analyzer for Networks main console. ... The agent then completely removes itself from remote client systems.
http://www1.execsoft.com/us_DPAN.exe - 5Mb - Download - Screenshot