.net error on Veeam Backup & Replication Install

KB ID:
1867
Product:
Veeam Backup & Replication
Version:
7.x
Published:
Last Modified:
2014-04-15

Challenge

When installing Veeam Backup & Replication on a Windows 7 machine you get the following error:
 

failed to execute .net assembly. Error code: 0x8013101B

Solution

To resolve, create a new DWORD in the registry to use only .NET 4.0 assemblies during install.

HKLM\SOFTWARE\Microsoft\.NETFramework
DWORD named "OnlyUseLatestCLR"
Set to 1


and
 
HKLM\SOFTWARE\Wow6432Node\Microsoft\.NETFramework
DWORD named "OnlyUseLatestCLR"
Set to 1


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