missing nlnotes.exe on Lotus Domino 8.5.2?

I was on a Lotus Domino server 8.5.2 FP2 (64bit) server this morning and found the nlnotes.exe missing in the domino program directory. At first I thought it was deleted by mistake however, I found nlnotes.exe missing on 8.5.2 FP1 (64bit) too. I know nlnotes.exe is horrible to use on a server with all the issues associated but sometimes it's necessary. A quick Google search found some other people noticing it gone but no reason as to why.

So I just did a fresh install of Lotus Domino 8.5.2 (32bit) with no fix pack and nlnotes.exe is in the program directory. Also I looked at another Lotus Domino 8.5.2 FP1 (32bit) server and nlnotes.exe was there. So it looks like IBM didn't include nlnotes.exe with the Windows Lotus Domino 64bit server.

Domino messages appear after upgrading to 8.5.1

With a customer's environment running Domino 8.5.1 FP2 I have noticed a strange message in the console stating:

UpdateStaleCacheEntries: Setting GCF_MATCH_SINGLENAME flag in cached Names list for UserName [CN=First Last/OU=orgu1/OU=orgu2/O=org/C=US], now = 05/21/2010 01:16:43 PM, timeout =

After some google searching I found an IBM article:

http://www-01.ibm.com/support/docview.wss?uid=swg1LO45992

stating that the issue will be fixed in the next release ( spr NFOL7XGJW3 )

I have yet to try running maintenance on the server's address book, but it seems to be a harmless message. The address book was also upgraded to ODS51 recently.