Issue
Certain DWF files will cause the Vault Client or Design Review to crash. These files are still viewable through the Autodesk Web Viewer (https://viewer.autodesk.com/). You may see the error code "Unable to load DLL APIHelper.dll: The specified module could not be found." (Exception from HRESULT: 0x8007007E)
Cause
The cause of this issue is currently under investigation by the Autodesk Development Team. Incident ID:27241
Solution
The following is a link to the current issue being tracked and investigated by Autodesk. Please refer to this link for the current status of the issue: https://knowledge.autodesk.com/support/vault-products/troubleshooting/caas/sfdcarticles/sfdcarticles/Vault-Preview-crashes-with-error-message-HRESULT-0x8007007E.html