Hi,
Yes, I restarted sap instance because of this error has been getting for 1 month & yesterday, i found that spool file is being created by itself so that's why i cleaned spool logs by using tcode spad & restarted server.Here i attached dev_ms logs as below.
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trc file: "dev_ms", trc level: 1, release: "700"
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[Thr 4072] Mon Feb 03 14:07:06 2014
[Thr 4072] MsSSetTrcLog: trc logging active, max size = 20971520 bytes
systemid 562 (PC with Windows NT)
relno 7000
patchlevel 0
patchno 302
intno 20050900
make: multithreaded, Unicode, 64 bit, optimized
pid 3984
[Thr 4072] ***LOG Q01=> MsSInit, MSStart (Msg Server 1 3984) [msxxserv.c 1837]
[Thr 4072] Mon Feb 03 14:07:07 2014
[Thr 4072] load acl file = E:\usr\sap\TRP\SYS\global\ms_acl_info.DAT
[Thr 4072] MsGetOwnIpAddr: my host addresses are :
[Thr 4072] 1 : [192.168.100.104] sapprm (HOSTNAME)
[Thr 4072] 2 : [127.0.0.1] SAPPRM (LOCALHOST)
[Thr 4072] MsHttpInit: full qualified hostname = SAPPRM
[Thr 4072] HTTP logging is switch off
[Thr 4072] set HTTP state to LISTEN
[Thr 4072] ms/icf_info_server : deleted
[Thr 4072] *** I listen to port sapmsTRP (3600) ***
[Thr 4072] *** I listen to internal port 3900 (3900) ***
[Thr 4072] *** HTTP port 8100 state LISTEN ***
[Thr 4072] CUSTOMER KEY: >U2043150623<
[Thr 4072] Mon Feb 03 14:07:37 2014
[Thr 4072] MsHttpReadUrl2: H-1 url = /sap/public/icf_info/logon_groups (403 Forbidden)
[Thr 4072] MsHttpReadUrl2: H-1 url = /sap/public/icf_info/urlprefix (403 Forbidden)
Regards
Abhijit