Archived Forum Post

Index of archived forum posts



Mar 02 '17 at 14:04

Can you help me with this problem,

An unhandled exception of type 'System.BadImageFormatException' occurred in App.exe Additional information: Could not load file or assembly 'ChilkatDotNet45, Version=, Culture=neutral, PublicKeyToken=eb5fc1fc52ef09bd' or one of its dependencies. An attempt was made to load a program with an incorrect format.

My project have the reference to ChilkatDotNet45.dll(32-bits) and it's compile to 32-bits. There is a solution for this problem?.


This is "Common Error #1" described on each Chilkat .NET download web page, such as here:

Also, for any error message, it's productive to Google (or Bing, DuckDuckGo, etc.) the error message in conjunction with the keyword "chilkat". For example, Google "chilkat attempt was made to load a program with an incorrect format".


Hello, I updated my system from VS2008 to VS2015 and wanted to start with a new nuget version of Chilkat ( When I start the application (web application), I get the error: [BadImageFormatException: Die Datei oder Assembly "ChilkatDotNet46" oder eine Abhängigkeit davon wurde nicht gefunden. Es wurde versucht, eine Datei mit einem falschen Format zu laden.]

I have Debug and Any CPU selected on a Win10 64-bit System. It seems, that there is no option for prefer 32-bit to disable in Website-Project. What could be the reason for the error? Thank you in advance, Reinhard