Revision 3 posted to Structural Analysis and Design - Wiki by Payel on 8/13/2015 6:18:38 PM
In most cases the "Diffutils.dll file ..." errors are related to insufficient/incorrect permissions to registry keys. Googling the error can navigate one to the various explanations, and here is the link to the webpage where the causes and possible solutions are explained best:
http://www.solvusoft.com/en/files/missing-not-found-error/dll/windows/windows-software-developer/diffutils-dynamic-link-library/diffutils-dll/
If the error message mentions that "The program cannot start because DiffUtils.dll is missing from your machine; please reinstall the software"; Try Reinstalling the software, it might resolve the issue. Before reinstalling, please check if there is a newer version of the software is available to download.
Tags: diffutils.dll, STAAD.Pro