MPLAB XC8 C Compiler v1.20 Command Line Parameters:

 --help          Display the list of valid options

 --version          Display product information

 --unattendedmodeui <unattendedmodeui>          Unattended Mode UI, only used with --mode unattended
         Default: none
         Allowed: none         Attended installation

                     minimal         Silent installation without any feedback

                     minimalWithDialogs          Silent installation with progress bar

 --optionfile <optionfile>      Installation option file

 --debuglevel <debuglevel>      Debug information level of verbosity
         Default: 2
         Allowed: 0 1 2 3 4

 --mode <mode>                  Installation mode
          Default: win32
          Allowed: win32   Attended installation

                      unattended    Unattended Installation, make settings with --unattendedmodeui

 --debugtrace <debugtrace>      Debug filename

 --installer-language <installer-language> Language selection
         Default: en
         Allowed: en ar bg ca da nl et fr fi de el es es_AR he hr hu it ja ko pl pt_BR pt ro ru no sl sk sq sv tr zh_TW zh_CN va cy cs

 --installerfunction <installerfunction> Choose compiler or Network License Manager installation.
           Default: installcompiler
           Allowed: installcompiler         Install XC8 C Compiler

                       netlicserver          Install License-Server for XC8 C Compiler

 --prefix <prefix>              Installation Directory

 --ModifyAll <ModifyAll>        Apply settings to all users of this machine
         Default: 1

 --Add to PATH <Add to PATH>    Add xc8 to the PATH environment variable
          Default: 1

 --MCC_INCLUDE <MCC_INCLUDE>    Add header file path to MCC_INCLUDE environment variable (used by the MPLAB C18 tools)

 --UPDATE_MPLAB <UPDATE_MPLAB>  Update MPLAB IDE to use the XC8 compiler for all existing C18 (mcc18) projects

 --LINK_ASM_LIB <LINK_ASM_LIB>  Use XC8 for the C18 Linker, Librarian and Assember

 --HostID <HostID>              Your Host ID is:
                                Default: ***unknown variable hostinfo***

XC8 C Compiler is dependent on msvcp71.dll and msvcr71.dll, both should be located in SysWOW32.

They are Part of Microsoft .NET Framework 1.1 SDK and only installed if you install the full version manually or with ADDLOCAL=ALL.

Strangely, WinMerge also installs these .dll-Files