An attempt to install Acronis Disk Director fails with an error message similar to the following one:
An error occurred during the installation of assembly
This is an issue with your Windows operating system which is unable to install the redistributable components of C Runtime. For example, installation of Microsoft Visual C++ 2008 Redistributable Package (or Visual C++ 2005 runtime library) will fail in the same way.
Please install all the pending Windows updates.
If this does not fix the issue, please follow the steps from Microsoft Knowledge Base article:
FIX: "HRESULT: 0x80073715" error when you install an application by using an .msi file if the file is merged with merge modules for the Visual C++ 2005 runtime library