I am trying to patch my SAP Web Application Server (640). I need to be at the kernel patch level 101. Do I need to install Support Packages before I perform this procedure? I followed the directions from note 19466. Basically, using sapcar to unpack the SAPEXE.SAR and SAPEXEDB.SAR (sapcar -xvf SAPEXExx.SAR).
I copied and pasted the unpacked files into the \usr\sap\<SID>\SYS\exe\run directory of my Windows installation. However, when I start my system up again, the original files reappear. If you know what this is issue, please let me know.