To create an installation log file using the command line

  1. Open Command Prompt

  2. From the command window, type msiexec /i package [/L][i][w][e][a][r][u][c][m][p][v][+][!] log_file.txt, and then press ENTER.


    package is the name of the Windows Installer package

    /L indicates to log information. The following flags specify which information to log:

    i - Status messages

    warning Warning

    e - All error messages

    a - Start up of actions

    r - Action-specific records

    u - User requests

    c - Initial user interface parameters

    m - Out-of-memory

    p - Terminal properties

    v - Verbose output

    + - Append to existing file

    ! - Flush each line to the log

    \* - Wildcard: log all information except for the v option.

    log_file .txt - the name and path of the text log file.


  • To open command prompt, click Start, point to All Programs, point to Accessories, and then click Command Prompt..

  • Windows Installer command-line switches are not case-sensitive.

  • To include the v option in a log file using the wildcard flag, type /L*v at the command prompt.

  • The Windows Installer log file options can also be used with the uninstall and repair processes.

  • For more information on the command-line options, see Related Topics.