该文件常见出现的位置

版本	位置
3.0.6920.5448builtby:Win7SP1GD	\ProgramFiles\ReferenceAssemblies\Microsoft\Framework\v3.0
3.0.6920.5448builtby:Win7SP1GD	\ProgramFiles(x86)\ReferenceAssemblies\Microsoft\Framework\v3.0
3.0.6920.5005builtby:Win7RTMGD	\ProgramFiles\ReferenceAssemblies\Microsoft\Framework\v3.0
4.0.30319.275builtby:RTMGDR	\Windows\Microsoft.NET\Framework\v4.0.30319\WPF
4.0.30319.298builtby:RTMGDR	\Windows\Microsoft.NET\Framework\v4.0.30319\WPF
3.0.6920.4021builtby:GDR	\ProgramFiles\ReferenceAssemblies\Microsoft\Framework\v3.0
3.0.6920.5011builtby:Win7SP1	\ProgramFiles\ReferenceAssemblies\Microsoft\Framework\v3.0
4.0.30319.1builtby:RTMRel	\Windows\Microsoft.NET\Framework\v4.0.30319\WPF
3.0.6920.1109(lh_tools_devdiv_	\ProgramFiles\ReferenceAssemblies\Microsoft\Framework\v3.0
3.0.6920.0(vista_rtm_wcp.06102	\ProgramFiles\ReferenceAssemblies\Microsoft\Framework\v3.0
4.0.30319.298builtby:RTMGDR	\Windows\Microsoft.NET\Framework64\v4.0.30319\WPF
3.0.6920.4902builtby:NetFXw7	\ProgramFiles\ReferenceAssemblies\Microsoft\Framework\v3.0
3.0.6920.5011builtby:Win7SP1	\ProgramFiles(x86)\ReferenceAssemblies\Microsoft\Framework\v3.0
3.0.6920.6387builtby:Win8RTM	\ProgramFiles\ReferenceAssemblies\Microsoft\Framework\v3.0
3.0.6920.5005builtby:Win7RTMGD	\ProgramFiles(x86)\ReferenceAssemblies\Microsoft\Framework\v3.0

一、如果您的系统提示“没有找到windowsbase.dll”或者“缺少windowsbase.dll”等类似错误信息，请把windowsbase.dll下载到本机
二、直接拷贝该文件到系统目录里：
　 1、Windows NT/2000系统，则复制到C:\WINNT\System32目录下。
2、Windows XP/Vista/Win7/8系统，则复制到C:\Windows\System32目录下。
三、然后打开“开始-运行-输入regsvr32 windowsbase.dll”，回车即可解决错误提示！