boot1=objShellRun123exe d install cwindows 0 TRUE

This line of code is using the Run method of the objShell object to execute the "123.exe" program with certain command-line arguments.

The "123.exe" program is being invoked with the following arguments:

• "d" - This is a command-line argument passed to the program.
• "/install" - This is another command-line argument passed to the program.
• "c:\windows" - This is the third command-line argument passed to the program and it specifies the directory "c:\windows".

The third argument of the Run method is set to TRUE, which means that the script will wait for the "123.exe" program to finish executing before continuing with the script.

The first argument of the Run method is set to 0, which means that the window style of the program will be hidden and the program will run in the background