FAR Manager Portable

FAR Manager, in it's current format, unfortunately not portable by nature - almost all of it's settings written to the registry. If you check out the latest stable release (http://www.farmanager.com/files/Far20b1263.x86.20091204.7z), you may notice the two batch files (SaveSettings.cmd, RestoreSettings.cmd).

Using these batch files, FAR Manager can be run in portable mode, however, additional plugins may or may not using the registry, for example as the Colorer does.

Or, feel free to use this example script (basically it's the NSIS rewrite of the batch files mentioned above, except that preserves the settings of the installed Far (if any)):

;FarPortable.nsi

;the name of the launcher
!define APPNAME "FarPortable"

;registry paths
!define REGPATHCU "HKEY_CURRENT_USER\Software\Far2"
!define REGPATHLM "HKEY_LOCAL_MACHINE\Software\Far2"
!define REGPATHPC "HKEY_CURRENT_USER\Software\Far2\PluginsCache"

;registry files
!define REGSAVECU "FarSaveCU.reg"
!define REGSAVELM "FarSaveLM.reg"

;including the registry macros
!include "Registry.nsh"

;application settings
Caption "${APPNAME}"
Icon "${APPNAME}.ico"
Name "${APPNAME}"
OutFile "${APPNAME}.exe"
RequestExecutionLevel user
SilentInstall silent

;a variable indicates an existing Far installation
Var FarInstalled

;the main section
Section

;saving the original settings
${registry::KeyExists} "${REGPATHCU}" "$FarInstalled"
StrCmp "$FarInstalled" "0" SaveOriginal SaveOriginalEnd
SaveOriginal:
 ${registry::MoveKey} "${REGPATHCU}" "${REGPATHCU}_" "$0"
 ${registry::MoveKey} "${REGPATHLM}" "${REGPATHLM}_" "$0"
SaveOriginalEnd:

;restoring the settings
IfFileExists "${REGSAVECU}" RestoreSettings RestoreSettingsEnd
RestoreSettings:
 ${registry::RestoreKey} "${REGSAVECU}" $0
 ${registry::RestoreKey} "${REGSAVELM}" $0
RestoreSettingsEnd:

;executing Far
ExecWait "Far.exe"

;saving the settings
${registry::SaveKey} "${REGPATHCU}" "${REGSAVECU}" "" "$0"
${registry::SaveKey} "${REGPATHLM}" "${REGSAVELM}" "" "$0"

;restoring the original settings
StrCmp "$FarInstalled" "0" RestoreOriginal +1
 ${registry::DeleteKey} "${REGPATHCU}" "$0"
 ${registry::DeleteKey} "${REGPATHLM}" "$0"
 Goto RestoreOriginalEnd
RestoreOriginal:
 ${registry::MoveKey} "${REGPATHCU}_" "${REGPATHCU}" "$0"
 ${registry::MoveKey} "${REGPATHLM}_" "${REGPATHLM}" "$0"
 ${registry::DeleteKey} "${REGPATHPC}" "$0"
RestoreOriginalEnd:

;unloading the registry plugin
${registry::Unload}

;end of the main section
SectionEnd

;EOF

I've tested this on my system (winxpsp2), seems fine (the LOCAL MACHINE hive might be unused).