Registry Support Limitations in IronPDF
Curtis Chau
Updated: July 21, 2026
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.Text
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 Visual C++ Redistributable for Visual Studio 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.
Technical Writer
Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.
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