Skip to main content

Adobe Acrobat Activex Control issues with 64bit machines. Error "Class not registered HRESULT 0x80040154..."

I justed moved from a 32 bit laptop to a 64 bit laptop. The project we are working on uses Acrobat Reader activex control to show PDF documents. When I ran the project on my system from VS 2008 the application threw exception while trying to load the PDF viewer control. The error returned was
"Class not registered HRESULT 0x80040154..."
The issue turned out to be that the solution was compiled for "Any CPU"\x64 bit architecture. Once i changed the build configuration to x86 and recompiled the error was resolved. It intially seemed like the component was not installed correctly and i tried to reinstall Acrobat Reader multiple times before hitting the correct solution.

Happy Coding


Popular posts from this blog

Caching Images downloaded from web on Windows Phone Isolated storage

I was helping on a Windows Phone application where the requirement was to cache the images the phone downloads on the isolated storage for offline viewing.
I wanted a solution which was simple and as transparent as possible. While researching I found  someone wrote a Silverlight converter for loading images from isolated storage. Taking that as a base I created a converted which can
Load image from web (http + https), and persist it to isolated storage.In case of network connectivity issues can load the same image from isolated storage. It does that by mapping the http url to a isolated storage location.In case the network is down and the image is neither there in cache, loads a default image, passed as parameter to converter.Here is the gist for the implementation.

To use the converter
Import the name space.Declare the converter as resource.Set the Image Source Property to use this converter like this 

AngularJS Model - ViewModel

Recently Robin Ward did a comparison between AngularJS and Ember (both the post and the comments are interesting read). One of the complaint that Robin had that AngularJS does not provide any specialized model class. As described in the blog

There is no standard Model base class, nor is there a component or interface in AngularJS that defines what a model is supposed to be.
What that means is that anything defined on $scope can acts as model, as this sample on the blog describes

For some (like me) this is the flexibility where as for others who want a more structural approach this is a nuisance.AngularJS does not even provide any definite guidelines around how the model should be actually designed to be effective with AngularJS

This leads to what we call as $scope pollution. We define multitude of properties on the $scope object and managing it becomes difficult.  Looking at the code one cannot tell what is the actual model and what properties are just to support UI logic.

Model Desig…