Please use the below link to download the DLL files.
Extract the files and then copy the mscvcr80.dll and mscvcr100.dll in the location C:\Windows\System32. If it gives you a prompt to replace the files please do so.
Navigate to the location C:\Program Files\Adobe\Adobe Photoshop Lightroom 5.6 and launch Lightroom5.exe from there and check if you get the same error or not.
Thank you. It works
Thank you. It workห