Application: "c:\program files\R\r-3.1.2\Tcl\bin64\tk85.dll" - According to EV100558
(Bug 16071 - side-by-side error (code 63) with tk85.dll of R in event viewer), this is a bug in the R programming language interpreter for Windows 7 x64.
Application: C:\Program Files (x86)\Common Files\Adobe AIR\Versions\1.0\Adobe AIR.dll - On Windows 7, we upgraded Adobe Air to the latest version (from 18.104.22.16830 to 3.4) and the problem disappeared.
The SideBySide in this case is not the one actually having the problem but the application mentioned in the event (SideBySide is just the "messenger", so don't shoot it!). Any approach in troubleshooting this should focus on the application mentioned in the event. There are quite a few applications that are associated with this type of problem and a fix for one of them does not necessarily apply to all the others.
Application: C:\Program Files\Tivoli\TSM\baclient\jvm60\jre\bin\unpack.dll, attribute "version" in element "assemblyIdentity" is invalid. - According to IBM, these error messages are issued by the IBM Java Runtime Engine 1.6 which is shipped with the version 6.2 backup-archive client. The messages can be ignored since they do not affect the operation of the backup-archive client. Client versions below 6.2 ship with an earlier Java Runtime Engine which does not exhibit this problem.
Application: c:\program files (x86)\spybot - search & destroy\DelZip179.dll, attribute "language" in element "assemblyIdentity" is invalid. From a support forum, SpyBot replied "Seems like your delzip.dll is damaged".
on how to diagnose SideBySide failures.