command line – ErrorWorld

Return filename and full path (CMD)

Search for filename and get full path and filename returned.

FOR /f "tokens=1,2,*" %a in ('dir /s %fileToCheck%') do if "%a %b" == "Directory of" SET pathAndFilename=%c\%fileToCheck%

Thanks to Leif Ole for this example

Multiple Commands in one line (CMD)

Run multiple commands in one line with Windows Command Shell.

START /W CMD.EXE /C & C: & CD\ & DEL /F /S /Q "[filename]" >"%temp%\delete.log"
START /W CMD.EXE /C & DEL /F /Q "[path][filename]" >"%temp%\delete.log"

You can use the special characters listed in the following table to pass multiple commands.

Character	Syntax	Definition
& […]	command1 & command2	Use to separate multiple commands on one command line. Cmd.exe runs the first command, and then the second command.
&& […]	command1 && command2	Use to run the command following && only if the command preceding the symbol is successful. Cmd.exe runs the first command, and then runs the second command only if the first command completed successfully.
\|\| […]	command1 \|\| command2	Use to run the command following \|\| only if the command preceding \|\| fails. Cmd.exe runs the first command, and then runs the second command only if the first command did not complete successfully (receives an error code greater than zero).
( ) […]	( command1 & command2)	Use to group or nest multiple commands.
; or ,	command1 parameter1;parameter2	Use to separate command parameters.

Note: The ampersand (&), pipe (|), and parentheses ( ) are special characters that must be preceded by the escape character (^) or quotation marks when you pass them as arguments
Note: This method can also be used in a .MSI package, through a Custom Action

Source: Microsoft

Remote Assistance

Start Remote Assistance in Windows from the Command Line. You can also request help or offer your skills as an expert.

"%windir%\system32\msra.exe" /offerra
"%windir%\system32\msra.exe" /novice
"%windir%\system32\msra.exe" /expert

Usage
Create a shortcut and enter first command line, shown above, as the target. Remember to elevate/run as if you are using differenced user accounts