Additional input for question 1: This sasnote has matrix tables of various SAS client software with their release and their support on SAS releases 9.1.3, 9.2, 9.3 and 9.4: http://support.sas.com/kb/51/162.html
Additional input for question 2: SAS Add-In 6.1 for Microsoft Office was first introduced in SAS 9.4 with SAS Add-in 7.1 for Microsoft Office being introduced in a later SAS 9.4 maintenance release. Depending on the type of SAS Software Order that your site has, both SAS Add-in releases may be available to install with the SDW (SAS Deployment Wizard), the traditional installation method, and the stand-alone installation method (unless the order is only for workstation environments). Read more in Appendix A at: https://support.sas.com/documentation/installcenter/en/ikdeploywizug/66034/PDF/default/user.pdf
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