Error while using loadlibrary with executable

I am getting following error which running an executable containing 'loadlibrary command'

Error using loadlibrary (line 447)
There was an error loading the library "C:\Software\MATLAB TDMS Executable\MATLAB TDM Example\samples\64-bit\ReadFileNI\for_testing\nilibddc.dll"
The specified module could not be found.
Error in ReadFile (line 31)
Caused by:
    Error using loaddefinedlibrary
    The specified module could not be found.

MATLAB:loadlibrary:LoadFailed
Error writing to output stream.

I created a prototype file for the .dll using the instructions given out on MATLAB community forums , but I still get the error. What am I doing wrong? Below is the code for which I am developing an executable:

clc;

%Recreate needed property constants defined in nilibddc_m.h
DDC_FILE_NAME          =  'name';
DDC_FILE_DESCRIPTION      =  'description';
DDC_FILE_TITLE          =  'title';
DDC_FILE_AUTHOR          =  'author';
DDC_FILE_DATETIME        =  'datetime';
DDC_CHANNELGROUP_NAME      =  'name';
DDC_CHANNELGROUP_DESCRIPTION  =  'description';
DDC_CHANNEL_NAME        =  'name';

%Check if the paths to 'nilibddc.dll' and 'nilibddc_m.h' have been
%selected. If not, prompt the user to browse to each of the files.
if exist('NI_TDM_DLL_Path','var')==0
    [dllfile,dllfolder]=uigetfile('*dll','Select nilibddc.dll');
    libname=strtok(dllfile,'.');
    NI_TDM_DLL_Path=fullfile(dllfolder,dllfile);
end
if exist('NI_TDM_H_Path','var')==0
    [hfile,hfolder]=uigetfile('*h','Select nilibddc_m.h');
    NI_TDM_H_Path=fullfile(hfolder,hfile);
end

%Prompt the user to browse to the path of the TDM or TDMS file to read
[filepath,filefolder]=uigetfile({'*.tdm';'*.tdms'},'Select a TDM or TDMS file');
Data_Path=fullfile(filefolder,filepath);

%Load nilibddc.dll (Always call 'unloadlibrary(libname)' after finished using the library)
%loadlibrary(NI_TDM_DLL_Path,NI_TDM_H_Path);
loadlibrary(NI_TDM_DLL_Path,@PrototypeName);

%Open the file (Always call 'DDC_CloseFile' when you are finished using a file)
fileIn = 0;
[err,dummyVar,dummyVar,file]=calllib(libname,'DDC_OpenFileEx',Data_Path,'',1,fileIn);

%Read and display file name property
filenamelenIn = 0;
%Get the length of the 'DDC_FILE_NAME' string property
[err,dummyVar,filenamelen]=calllib(libname,'DDC_GetFileStringPropertyLength',file,DDC_FILE_NAME,filenamelenIn);
if err==0 %Only proceed if the property is found
    %Initialize a string to the length of the property value
    pfilename=libpointer('stringPtr',blanks(filenamelen));
    [err,dummyVar,filename]=calllib(libname,'DDC_GetFileProperty',file,DDC_FILE_NAME,pfilename,filenamelen+1);
    setdatatype(filename,'int8Ptr',1,filenamelen);
    disp(['File Name: ' char(filename.Value)]);
end
%Unload nilibddc.dll
unloadlibrary(libname);