PsExec is a powerful command-line utility that allows you to execute processes on remote systems. It is part of the Sysinternals Suite developed by Microsoft and is frequently used by IT professionals to manage and troubleshoot Windows systems remotely. This tool is particularly useful for running scripts, launching applications, and performing administrative tasks without needing to physically access the machine.

Examples:

1. Basic Usage of PsExec:

   To run a command on a remote computer using PsExec, you need to specify the target machine's name or IP address, along with the command you wish to execute. Here is a basic example:

   psexec \\RemotePC -u AdminUser -p Password cmd

   In this example, \\RemotePC is the name of the remote computer, -u AdminUser specifies the username with administrative privileges, and -p Password is the password for that user. The cmd at the end opens a command prompt on the remote system.

2. Running a Script Remotely:

   If you have a script that needs to be executed on a remote machine, you can use PsExec to accomplish this. For instance, to run a batch file:

   psexec \\RemotePC -u AdminUser -p Password -c C:\Scripts\example.bat

   The -c switch copies the specified batch file to the remote system and executes it.

3. Executing Commands with System Account:

   Sometimes, you might need to run commands with the system account privileges. PsExec can help you achieve this:

   psexec -s -i cmd

   The -s switch runs the command with system account privileges, and -i allows the command to interact with the desktop.

4. Running a Program on a Remote System:

   To start an application on a remote computer, you can use PsExec as follows:

   psexec \\RemotePC -u AdminUser -p Password "C:\Program Files\MyApp\app.exe"

   This command will launch app.exe located in the specified directory on the remote machine.

5. Handling Output and Errors:

   PsExec allows you to redirect the output and error messages to a file for logging purposes:

   psexec \\RemotePC -u AdminUser -p Password ipconfig > output.txt 2>&1

   This command runs ipconfig on the remote system and redirects both standard output and error output to output.txt.