Discovering windows host in linux oms...

Yesterday I decided to add a windows host to my Oracle 10gr2 Grid. The 10gr2 Grid control is running on Oracle Enterprise Linux release 4.5
I downloaded the windows agent 10.2.0.3 and installed this agent on the windows machine. After installing I checked my OEM site to see if the target was already discovered....
I did not see the windows host, so I decided to check the windows agent log files. The following error was found :

Thread-7244 ERROR pingManager: nmepm_pingReposURL: Cannot connect to https://oemserver.local:1159/em/upload: retStatus=-12008-02-14 12:45:17 Thread-928 ERROR upload: Error in uploadXMLFiles. Trying again in 900.00 seconds or earlier.2008-02-14 12:45:32 Thread-2924 ERROR upload: Error in uploadXMLFiles

It seems the agent cannot connect to the oms, but why ? I tried uploading the data manually...

D:\oracle\agent\10203\agent10g\BIN>emctl upload
Oracle Enterprise Manager 10g Release 3 Grid Control 10.2.0.3.0.Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
EMD upload error: uploadXMLFiles skipped :: OMS version not checked yet..

Checking Metalink brought me the sollution. It had to unsecure the agent...

To unlock the oms you do
OMS_HOME/bin/emctl secure oms unlock

Then restart the agent
AGENT_HOME/bin/emctl start agent

and unsecure it using:
AGENT_HOME/bin/emctl unsecure agent

then issue a clearstate for the agent:
AGENT_HOME/bin/emctl clearstate agent

then attempt the upload
AGENT_HOME/bin/emctl upload agent

And thsi time the upload was succesfull. Checking the status of the agent today showed me the following...

D:\oracle\agent\10203\agent10g\BIN>emctl status agent
Oracle Enterprise Manager 10g Release 3 Grid Control 10.2.0.3.0.Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
Agent Version : 10.2.0.3.0
OMS Version : 10.2.0.3.0
Protocol Version : 10.2.0.2.0
Agent Home : D:\oracle\agent\10203\agent10g
Agent binaries : D:\oracle\agent\10203\agent10g
Agent Process ID : 6828
Agent URL : http://agenthost.local:3872/emd/main/
Repository URL : http://oemhost.local:4889/em/upload/
Started at : 2008-02-14 14:36:10
Started by user : SYSTEM
Last Reload : 2008-02-14 14:36:10
Last successful upload : 2008-02-15 10:39:37
Total Megabytes of XML files uploaded so far : 20.17
Number of XML files pending upload : 0
Size of XML files pending upload(MB) : 0.00
Available disk space on upload filesystem : 95.40%
Last successful heartbeat to OMS : 2008-02-15 10:41:37
---------------------------------------------------------------
Agent is Running and Ready