[mogdin]

В вашем скрипте изменил только версию самого винампа и папку источник и как поменять картинку слева в инсталяторе на свою скрипт прилагаю

; Script generated by the HM NIS Edit Script Wizard.

; HM NIS Edit Wizard helper defines
!define PRODUCT_NAME "Winamp"
!define PRODUCT_VERSION "5.6.0.3091"
!define PRODUCT_UNINST_KEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}"
!define PRODUCT_UNINST_ROOT_KEY "HKLM"

; MUI 1.67 compatible ------
!include "MUI.nsh"
SetCompressor /SOLID lzma
; MUI Settings
!define MUI_ABORTWARNING
!define MUI_ICON "C:\icon.ico"
!define MUI_UNICON "${NSISDIR}\Contrib\Graphics\Icons\modern-uninstall.ico"
!define BRANDING "- packaged by mogdin"

!insertmacro MUI_PAGE_WELCOME
!insertmacro MUI_PAGE_DIRECTORY
!insertmacro MUI_PAGE_INSTFILES
!insertmacro MUI_PAGE_FINISH
!insertmacro MUI_UNPAGE_CONFIRM
!insertmacro MUI_UNPAGE_INSTFILES
!insertmacro MUI_UNPAGE_FINISH

; Language files
!insertmacro MUI_LANGUAGE "Russian"

; MUI end ------
Name "${PRODUCT_NAME}"
Caption "${PRODUCT_NAME} ${PRODUCT_VERSION}"
UninstallCaption "Удаление ${PRODUCT_NAME} ${PRODUCT_VERSION}"
OutFile "${PRODUCT_NAME}_${PRODUCT_VERSION}.exe"
InstallDir "$PROGRAMFILES\Winamp"
ShowInstDetails show
ShowUnInstDetails show
BrandingText "${BRANDING}"

Section "MainSection" SEC01
SetOutPath "$INSTDIR"
File /r "C:\Winamp\*.*"
SetShellVarContext all
CreateDirectory "$SMPROGRAMS\${PRODUCT_NAME}"
CreateShortCut "$Desktop\${PRODUCT_NAME}.lnk" "$INSTDIR\winamp.exe"
CreateShortCut "$SMPROGRAMS\${PRODUCT_NAME}\${PRODUCT_NAME}.lnk" "$INSTDIR\winamp.exe"
WriteRegStr HKLM "SOFTWARE\Nullsoft\Winamp" "regname" ""
WriteRegStr HKLM "SOFTWARE\Nullsoft\Winamp" "regkey" ""
ExecWait '$INSTDIR\winamp.exe /REG=LCAD'
WriteUninstaller "$INSTDIR\uninst.exe"
CreateShortCut "$SMPROGRAMS\${PRODUCT_NAME}\Удалить ${PRODUCT_NAME}.lnk" "$INSTDIR\uninst.exe"
WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "DisplayName" "$INSTDIR\winamp.exe"
WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "UninstallString" "$INSTDIR\uninst.exe"
WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "DisplayVersion" "${PRODUCT_VERSION}"
WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "DisplayIcon" "${PRODUCT_VERSION}"
SectionEnd

Section Uninstall
ExecWait '$INSTDIR\winamp.exe /UNREG'
RMDir /r "$INSTDIR"
SetShellVarContext all
RMDir /r "$SMPROGRAMS\${PRODUCT_NAME}"
Delete "$Desktop\${PRODUCT_NAME}.lnk"
DeleteRegKey ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}"
SetAutoClose true
SectionEnd