该文件常见出现的位置

版本	位置
2.8.0f0	\ProgramFiles\NationalInstruments\MAX\DataDictionaries
2.8.0f0	\ProgramFiles\NationalInstruments\MAX\DataDictionaries
2.7.0f2	\ProgramData\NationalInstruments\MAX\DataDictionaries\Last
2.6.7f1	\ProgramFiles\NationalInstruments\MAX\DataDictionaries
2.8.0f0	\ProgramData\NationalInstruments\MAX\DataDictionaries\Last
2.7.0f2	\ProgramFiles\NationalInstruments\MAX\DataDictionaries
2.6.7f1	\ProgramFiles\NationalInstruments\RTImages\NI-DAQmx
2.6.7f1	\ProgramData\NationalInstruments\MAX\DataDictionaries\Last
2.8.0f0	\ProgramFiles\NationalInstruments\RTImages\NI-DAQmx\9.4.0
2.7.0f2	\UPAN\NationalInstruments\MAX\DataDictionaries
2.9.1f1	\ProgramFiles\NationalInstruments\MAX\DataDictionaries
2.9.1f1	\ProgramData\NationalInstruments\MAX\DataDictionaries\Last
2.6.7f1	\ProgramData\NationalInstruments\MAX\Data\mxsCheckpoints\20120223_131317.cpt
2.6.7f1	\ProgramData\NationalInstruments\MAX\Data\mxsCheckpoints\20120328_210900.cpt
2.6.7f1	\ProgramData\NationalInstruments\MAX\Data\mxsCheckpoints\20120413_122545.cpt

一、如果您的系统提示“没有找到niconddd.dll”或者“缺少niconddd.dll”等类似错误信息，请把niconddd.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 niconddd.dll”，回车即可解决错误提示！