Upgrading SAP Kernel

Question

I need to upgrade the Kernel of our 620 BW System as it hasn't been done for a couple of years. 
The current level is 1393 and DB 1467.
I have downloaded the following:
SAPEXE 1773 - (Kernel part 1 for Stack Q4-2004) and
SAPEXEDB 1773 - (Kernel part II for Stack Q4-2004)
Just wondering if this stack will contain all outstanding files from our current level?  Does this look like the correct version to install.
Many thanks!
Marie

Answer 1

Hi Marie,
Yes the 640 Kernel is supported, as it is downwards compatible. By the way we are running all our 620 systems with the 640 Kernel also on Windows/SQL.
Maybe your problem is a result of a missing profile parameter (in default profile), that has changed.
Missing parameter is dbs/mss/server=<hostname>\<instance>.
Take a look at SAP note 858449.
Another tip is maybe the librfc32.dll in the <windir>\system32 directory of your server, that also has to be updated. (Please don't rename or move the old file, copy it to another name or directory to make a backup, before you replace it with the new one! You risk to mix up some registry information).
Did you had any errors while copying the new (640) kernel to the ..\sys\exe\run directory ? (file in use or so?)
Are you sure you have stopped every thing before you replaced the kernel ? (SAP, DB, saposcol, sapmmc, and all sap-services) ?
Sometimes (can't explain) a boot of the server helps clean up errors that can't be explained
Can you give some more information about your error (Error:  9007041D) is not much information....
And last yes the sap_droproc is necessary, specially if you upgrade the kernel (is mentioned in SAP note 664679).
I hope you can solve your "upgrade"...
Regards
Rolf