原文 NSIS：使用FileFunc.nsh头文件判断文件版本
这里，轻狂拿WMP10做一个例子。关于WMP10的原始安装文件，可以下载后通过/C /T:D:\Windows Media Player参数（参数说明：将文件解开到D:\Windows Media Player文件夹）得到。
首先，引入头文件：
!include "FileFunc.nsh"
然后，写详细的代码：
Section "WMP" SEC_WMP
${GetFileVersion} "$PROGRAMFILES\Windows Media Player\wmplayer.exe" $R1
Pop $R1
${If} $R1 < '10.0.0.3802'
MessageBox MB_YESNO "您的Windows Media Player版本过低，是否升级到推荐版本？" IDNO NoReadme
SetDetailsPrint textonly
DetailPrint "正在安装 Windows Media Player10..."
SetDetailsPrint listonly
SetOutPath "$TEMP\MP10"
File "Windows Media Player10\9SeriesD.wmz"
File "Windows Media Player10\asferror.dll"
File "Windows Media Player10\audiodev.dll"
File "Windows Media Player10\blackbox.dll"
File "Windows Media Player10\CEWMDM.dll"
File "Windows Media Player10\codecs10.cat"
File "Windows Media Player10\codecs10.inf"
File "Windows Media Player10\Compact.wmz"
File "Windows Media Player10\control.xml"
File "Windows Media Player10\custsat.dll"
File "Windows Media Player10\DRM10.cat"
File "Windows Media Player10\DRM10.inf"
File "Windows Media Player10\DRMClien.dll"
File "Windows Media Player10\DrmStor.dll"
File "Windows Media Player10\drmupgds.exe"
File "Windows Media Player10\drmv2clt.dll"
File "Windows Media Player10\eula.txt"
File "Windows Media Player10\l3codecp.acm"
File "Windows Media Player10\LAPRXY.DLL"
File "Windows Media Player10\logagent.exe"
File "Windows Media Player10\migrate.exe"
File "Windows Media Player10\MPCD10.cat"
File "Windows Media Player10\MPCD10.inf"
File "Windows Media Player10\MPPRE10.cat"
File "Windows Media Player10\MPPRE10.inf"
File "Windows Media Player10\MPSTUB10.cat"
File "Windows Media Player10\MPSTUB10.inf"
File "Windows Media Player10\mpvis.DLL"
File "Windows Media Player10\msnetobj.dll"
File "Windows Media Player10\msnlogo.png"
File "Windows Media Player10\msnsmall.png"
File "Windows Media Player10\msoobci.dll"
File "Windows Media Player10\MsPMSNSv.dll"
File "Windows Media Player10\MsPMSP.dll"
File "Windows Media Player10\msscp.dll"
File "Windows Media Player10\MSWMDM.dll"
File "Windows Media Player10\mymusic.inf"
File "Windows Media Player10\Plylst1.wpl"
File "Windows Media Player10\Plylst10.wpl"
File "Windows Media Player10\Plylst11.wpl"
File "Windows Media Player10\Plylst12.wpl"
File "Windows Media Player10\Plylst13.wpl"
File "Windows Media Player10\Plylst14.wpl"
File "Windows Media Player10\Plylst15.wpl"
File "Windows Media Player10\Plylst2.wpl"
File "Windows Media Player10\Plylst3.wpl"
File "Windows Media Player10\Plylst4.wpl"
File "Windows Media Player10\Plylst5.wpl"
File "Windows Media Player10\Plylst6.wpl"
File "Windows Media Player10\Plylst7.wpl"
File "Windows Media Player10\Plylst8.wpl"
File "Windows Media Player10\Plylst9.wpl"
File "Windows Media Player10\qasf.dll"
File "Windows Media Player10\QuickSi.wmz"
File "Windows Media Player10\Revert.wmz"
File "Windows Media Player10\setup_wm.exe"
File "Windows Media Player10\skins.inf"
File "Windows Media Player10\skinsmui.inf"
File "Windows Media Player10\syncpl01.wpl"
File "Windows Media Player10\syncpl02.wpl"
File "Windows Media Player10\syncpl03.wpl"
File "Windows Media Player10\syncpl04.wpl"
File "Windows Media Player10\syncpl05.wpl"
File "Windows Media Player10\syncpl06.wpl"
File "Windows Media Player10\syncpl07.wpl"
File "Windows Media Player10\syncpl08.wpl"
File "Windows Media Player10\syncpl09.wpl"
File "Windows Media Player10\syncpl10.wpl"
File "Windows Media Player10\syncpl11.wpl"
File "Windows Media Player10\syncpl12.wpl"
File "Windows Media Player10\unregmp2.exe"
File "Windows Media Player10\uWDF.exe"
File "Windows Media Player10\WdfApi.dll"
File "Windows Media Player10\WdfMgr.exe"
File "Windows Media Player10\WMADMOD.DLL"
File "Windows Media Player10\WMADMOE.DLL"
File "Windows Media Player10\WMASF.DLL"
File "Windows Media Player10\WMDM10.cat"
File "Windows Media Player10\WMDM10.inf"
File "Windows Media Player10\WMDMLOG.dll"
File "Windows Media Player10\WMDMPS.dll"
File "Windows Media Player10\wmdrmdev.dll"
File "Windows Media Player10\wmdrmnet.dll"
File "Windows Media Player10\wmerror.dll"
File "Windows Media Player10\WMFSDK10.cat"
File "Windows Media Player10\WMFSDK10.inf"
File "Windows Media Player10\wmidx.dll"
File "Windows Media Player10\wmlaunch.exe"
File "Windows Media Player10\WMNetMgr.dll"
File "Windows Media Player10\wmp.dll"
File "Windows Media Player10\wmp.ocx"
File "Windows Media Player10\WMP10.cat"
File "Windows Media Player10\wmp10.chm"
File "Windows Media Player10\WMP10.inf"
File "Windows Media Player10\wmpasf.dll"
File "Windows Media Player10\wmpband.dll"
File "Windows Media Player10\wmpcd.dll"
File "Windows Media Player10\wmpcore.dll"
File "Windows Media Player10\wmpdxm.dll"
File "Windows Media Player10\wmpenc.exe"
File "Windows Media Player10\WMPEncEn.dll"
File "Windows Media Player10\wmperr10.chm"
File "Windows Media Player10\wmplayer.adm"
File "Windows Media Player10\wmplayer.exe"
File "Windows Media Player10\wmploc.DLL"
File "Windows Media Player10\wmpshell.dll"
File "Windows Media Player10\wmpsrcwp.dll"
File "Windows Media Player10\wmpui.dll"
File "Windows Media Player10\WMSDMOD.DLL"
File "Windows Media Player10\WMSDMOE2.DLL"
File "Windows Media Player10\WMSET10.cat"
File "Windows Media Player10\WMSET10.inf"
File "Windows Media Player10\wmsetsdk.exe"
File "Windows Media Player10\wmsetsdk.inf"
File "Windows Media Player10\WMSPDMOD.DLL"
File "Windows Media Player10\WMSPDMOE.DLL"
File "Windows Media Player10\WMVADVD.DLL"
File "Windows Media Player10\WMVADVE.DLL"
File "Windows Media Player10\WMVCORE.DLL"
File "Windows Media Player10\WMVDMOD.DLL"
File "Windows Media Player10\WMVDMOE2.DLL"
File "Windows Media Player10\WPD10.cat"
File "Windows Media Player10\WPD10.inf"
File "Windows Media Player10\wpdconns.dll"
File "Windows Media Player10\wpdmtp.dll"
File "Windows Media Player10\wpdmtp.inf"
File "Windows Media Player10\wpdmtpdr.dll"
File "Windows Media Player10\wpdmtpus.dll"
File "Windows Media Player10\WPDSp.dll"
File "Windows Media Player10\wpdtrace.dll"
File "Windows Media Player10\wpdusb.sys"
File "Windows Media Player10\wpd_ci.dll"
ExecWait '$TEMP\MP10\setup_wm.exe /Q' $R1
RMDir /r "$TEMP\MP10"
${EndIf}
NoReadme:
SectionEnd