1. IronPDF
  2. Troubleshooting
  3. Registry is not supported on this platform

Registry Support Limitations in IronPDF

Error while loading '..\libcef.dll' via Kernel32 : 'The specified module could not be found.'
Cannot Check Visual C++ Registry
System.TypeInitializationException: The type initializer for '' threw an exception.
 ---> System.PlatformNotSupportedException: Registry is not supported on this platform.

This uncommon exception is typically encountered by users attempting to run IronPDF on IIS.

Possible Cause

This runtime error indicates that the machine where IronPDF is being executed might be missing the Visual C++ redistributable.

Solution

To resolve this issue, install the install Visual C++ on your machine.

Please note
For x64 machines, both the x86 and x64 versions of the Visual C++ redistributable are required. Ensure that both are installed.

If you need further assistance, please submit an Engineering Request .