Hi Mohammad,
CVI does not include an MSI editor and cannot be used to modify existing MSI installer files. If the installer you are referring to was built by CVI, then you could change the distribution settings to include the new DLL instead of the old one, then rebuild your installer. Presumably this is not the case for you, so you will need to use a third-party MSI editor like Wise or
Orca (which can be downloaded for free as part of the Windows SDK). Replacing a file is fairly trivial if you are familiar with the MSI tables.
Hope this helps.
Mert A.
National Instruments