Windows Commands
How o send popup messages among Windows computers and network client computers – NET SEND DOS COMMAND
To send popup messages among Windows  computers and network client computers, use the NET SEND command from the MS-DOS Command Prompt in Windows NT as follows: USE OF NET SEND DOS COMMAND net send  ’computer name’ ‘Message’
Assoc – Windows Command-line Reference
Displays or modifies file name extension associations. If used without parameters, assoc displays a list of all the current file name extension associations. Syntax assoc [<.ext>[=[<FileType>]]] Parameters Parameter Description <.ext> Specifies the file name extension. <FileType> Specifies the file type to associate with the specified file name extension. /? Displays help at the command prompt. Remarks [...]
Arp – Windows Command-line Reference
Displays and modifies entries in the Address Resolution Protocol (ARP) cache, which contains one or more tables that are used to store IP addresses and their resolved Ethernet or Token Ring physical addresses. There is a separate table for each Ethernet or Token Ring network adapter installed on your computer. Used without parameters, arp displays help. [...]
Append -Windows Command
Allows programs to open data files in specified directories as if they were in the current directory. If used without parameters, append displays the appended directory list. Parameter Description [<Drive>:]<Path> Specifies a drive and directory to append. /x:on Applies appended directories to file searches and launching applications. /x:off Applies appended directories only to requests to [...]
Adprep – Windows Command-line Reference
Adprep.exe is a command-line tool that is available on the Windows Server 2008 installation disc in the \sources\adprep folder, and it is available on the Windows Server 2008 R2 installation disk in the \support\adprep folder. You must run adprep from an elevated command prompt. To open an elevated command prompt, click Start, right-click Command Prompt, and then click Run as administrator. In [...]