wix support localization with .wixproj

          
   
1:  your .wixproj files include the .wxl  file
          
         <ItemGroup>
             <EmbeddedResource Include="en_us.wxl" />
             <EmbeddedResource Include="zh_cn.wxl" />
       </ItemGroup>

2:  .wxl file look like:


       <?xml version="1.0" encoding="utf-8"?>
<WixLocalization Culture="en-us" xmlns="http://schemas.microsoft.com/wix/2006/localization">
<String Id="WelcomeDlgDescription">This Setup Wizard will install [ProductName] [MajorVersion].[MinorVersion] on your computer. Click Next to continue or Cancel to exit.</String>
</WixLocalization>
   
         http://wixtoolset.org/documentation/manual/v3/wixui/wixui_localization.html

             Table of culture codes.        

Language	Location	Culture code	WXL file
Arabic	Saudi Arabia	ar-SA	WixUI_ar-SA.wxl
Bulgarian	Bulgaria	bg-BG	WixUI_bg-BG.wxl
Catalan	Spain	ca-ES	WixUI_ca-ES.wxl
Croatian	Croatia	hr-HR	WixUI_hr-HR.wxl
Czech	Czech Republic	cs-CZ	WixUI_cs-CZ.wxl
Danish	Denmark	da-DK	WixUI_da-DK.wxl
Dutch	Netherlands	nl-NL	WixUI_nl-NL.wxl
English	United States	en-US	WixUI_en-US.wxl
Estonian	Estonia	et-EE	WixUI_et-EE.wxl
Finnish	Finland	fi-FI	WixUI_fi-FI.wxl
French	France	fr-FR	WixUI_fr-FR.wxl
German	Germany	de-DE	WixUI_de-DE.wxl
Greek	Greece	el-GR	WixUI_el-GR.wxl
Hebrew	Israel	he-IL	WixUI_he-IL.wxl
Hindi	India	hi-IN	WixUI_hi-IN.wxl
Hungarian	Hungary	hu-HU	WixUI_hu-HU.wxl
Italian	Italy	it-IT	WixUI_it-IT.wxl
Japanese	Japan	ja-JP	WixUI_ja-JP.wxl
Kazakh	Kazakhstan	kk-KZ	WixUI_kk-KZ.wxl
Korean	Korea	ko-KR	WixUI_ko-KR.wxl
Latvian	Latvia	lv-LV	WixUI_lv-LV.wxl
Lithuanian	Lithuania	lt-LT	WixUI_lt-LT.wxl
Norwegian (Bokmål)	Norway	nb-NO	WixUI_nb-NO.wxl
Polish	Poland	pl-PL	WixUI_pl-PL.wxl
Portuguese	Brazil	pt-BR	WixUI_pt-BR.wxl
Portuguese	Portugal	pt-PT	WixUI_pt-PT.wxl
Romanian	Romania	ro-RO	WixUI_ro-RO.wxl
Russian	Russia	ru-RU	WixUI_ru-RU.wxl
Serbian (Latin)	Serbia and Montenegro	sr-Latn-CS	WixUI_sr-Latn-CS.wxl
Simplified Chinese	China	zh-CN	WixUI_zh-CN.wxl
Slovak	Slovak Republic	sk-SK	WixUI_sk-SK.wxl
Slovenian	Solvenia	sl-SI	WixUI_sl_SI.wxl
Spanish	Spain	es-ES	WixUI_es-ES.wxl
Swedish	Sweden	sv-SE	WixUI_sv-SE.wxl
Thai	Thailand	th-TH	WixUI_th-TH.wxl
Traditional Chinese	Hong Kong SAR	zh-HK	WixUI_zh-HK.wxl
Traditional Chinese	Taiwan	zh-TW	WixUI_zh-TW.wxl
Turkish	Turkey	tr-TR	WixUI_tr-TR.wxl
Ukrainian	Ukraine	uk-UA	WixUI_uk-UA.wxl