The information in this article applies to:
SymptomsDuring the installation process a small dialog appears displaying the following error message:AddPrinterDriverEx:The specified module could not be found.(126)
CauseSome required modules are missing when the Nitro PDF Professional installer calls the Windows API AddPrinterDriverEx() function.ResolutionThis error usually happens to some Windows XP machines. First ensure that you have the latest Windows Service Pack installed (SP3). If this doesn't solve the problem, follow these steps, before attempting to install Nitro PDF again.
If the problem still persist, please attempt this alternative solution in KB article 10182. Only attempt this solution if the above steps does not help.