The backdrop.dll file is part of Desktop Drag and Drop Services from Clarity Systems Ltd.  Clarity Systems is a business solution company that provides software for business financial planning and forecasting.  The drag and drop services module may belong to different applications from Clarity Systems, because dynamic link libraries are designed to be shared by multiple programs.

If you have any of Clarity System’s applications on your computer and get this error message, you may have an issue with the location of this file on your system.  This can happen for a variety of reasons, including dll stomping, when a newly installed program overwrites an existing dll with an earlier version.  It can be nearly impossible to figure out why an error occurs unless you are an expert in computers, but fortunately, you can run registry cleaning software that will fix the problem for you.

ZookaWare PC Cleaner is a trustworthy registry cleaner, you can look at the company’s record at the Better Business Bureau if you aren’t certain.  With ZookaWare PC Cleaner, your computer will be running smoothly again in no time, guaranteed.