090310 14:59:20  InnoDB: Started; log sequence number 3 97825825
090310 14:59:23 [Note] Event Scheduler: Loaded 0 events
090310 14:59:23 [Note] mysql5131: ready for connections.
Version: '5.1.31-community'  socket: ''  port: 5131  MySQL Community Server (GPL)
090312 14:46:28 [Note] mysql5131: Normal shutdown

090312 14:46:28 [Note] Event Scheduler: Purging the queue. 0 events
090312 14:46:28  InnoDB: Starting shutdown...
090312 14:46:29  InnoDB: Shutdown completed; log sequence number 3 97825825
090312 14:46:29 [Warning] Forcing shutdown of 1 plugins
090312 14:46:29 [Note] mysql5131: Shutdown complete

090312 14:56:56  InnoDB: Operating system error number 32 in a file operation.
InnoDB: The error means that another program is using InnoDB's files.
InnoDB: This might be a backup or antivirus software or another instance
InnoDB: of MySQL. Please close it to get rid of this error.
090312 14:57:06  InnoDB: Operating system error number 32 in a file operation.
InnoDB: The error means that another program is using InnoDB's files.
InnoDB: This might be a backup or antivirus software or another instance
InnoDB: of MySQL. Please close it to get rid of this error.
InnoDB: The first specified data file C:\mysql5.1.31\data\ibdata1 did not exist:
InnoDB: a new database to be created!
090312 14:56:55  InnoDB: Setting file C:\mysql5.1.31\data\ibdata1 size to 700 MB
InnoDB: Database physically writes the file full: wait...
InnoDB: Progress in MB: 100 200 300 400 500 600 700
090312 14:57:09  InnoDB: Data file C:\mysql5.1.31\data\ibdata2 did not exist: new to be created
090312 14:57:09  InnoDB: Setting file C:\mysql5.1.31\data\ibdata2 size to 200 MB
InnoDB: Database physically writes the file full: wait...
InnoDB: Progress in MB: 100 200
InnoDB: Error: all log files must be created at the same time.
InnoDB: All log files must be created also in database creation.
InnoDB: If you want bigger or smaller log files, shut down the
InnoDB: database and make sure there were no errors in shutdown.
InnoDB: Then delete the existing log files. Edit the .cnf file
InnoDB: and start the database again.
090312 14:57:14 [ERROR] Plugin 'InnoDB' init function returned error.
090312 14:57:14 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
090312 14:57:14 [ERROR] Unknown/unsupported table type: INNODB
090312 14:57:14 [ERROR] Aborting

090312 14:57:14 [Warning] Forcing shutdown of 1 plugins
090312 14:57:14 [Note] mysqld: Shutdown complete

InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
090312 14:57:16  InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
InnoDB: Page directory corruption: infimum not pointed to
090312 14:57:16  InnoDB: Page dump in ascii and hex (16384 bytes):
 len 16384; hex 000000

[Roel edited: lots of zeros]

00000000; asc 

[Roel edited: lots of spaces]

;InnoDB: End of page dump
090312 14:57:16  InnoDB: Page checksum 1575996416, prior-to-4.0.14-form checksum 1371122432
InnoDB: stored checksum 0, prior-to-4.0.14-form stored checksum 0
InnoDB: Page lsn 0 0, low 4 bytes of lsn at page end 0
InnoDB: Page number (if stored to page already) 0,
InnoDB: space id (if created with >= MySQL-4.1.1 and stored already) 0
InnoDB: Page may be a freshly allocated page
InnoDB: Page directory corruption: supremum not pointed to
090312 14:57:16  InnoDB: Page dump in ascii and hex (16384 bytes):
 len 16384; hex 0000000

[Roel edited: lots of zeros]

00000000; asc 

[Roel edited: lots of spaces]

;InnoDB: End of page dump
090312 14:57:16  InnoDB: Page checksum 1575996416, prior-to-4.0.14-form checksum 1371122432
InnoDB: stored checksum 0, prior-to-4.0.14-form stored checksum 0
InnoDB: Page lsn 0 0, low 4 bytes of lsn at page end 0
InnoDB: Page number (if stored to page already) 0,
InnoDB: space id (if created with >= MySQL-4.1.1 and stored already) 0
InnoDB: Page may be a freshly allocated page
090312 14:57:16InnoDB: Error: trying to access a stray pointer 84CE3FF8
InnoDB: buf pool start is at 04CD4000, end at 076D4000
InnoDB: Probable reason is database corruption or memory
InnoDB: corruption. If this happens in an InnoDB database recovery, see
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html
InnoDB: how to force recovery.
090312 14:57:16  InnoDB: Assertion failure in thread 6572 in file G:\mysql-5.1.31-winbuild\mysql-community-nt-5.1.31-build\storage\innobase\include\buf0buf.ic line 264
InnoDB: We intentionally generate a memory trap.
InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
InnoDB: If you get repeated assertion failures or crashes, even
InnoDB: immediately after the mysqld startup, there may be
InnoDB: corruption in the InnoDB tablespace. Please refer to
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html
InnoDB: about forcing recovery.
090312 14:57:16 - mysqld got exception 0xc0000005 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help diagnose
the problem, but since we have already crashed, something is definitely wrong
and this may fail.

key_buffer_size=24117248
read_buffer_size=65536
max_used_connections=0
max_threads=100
threads_connected=0
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 56182 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

thd: 0x0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
006E82E0    mysqld.exe!buf_frame_align()[buf0buf.ic:264]
006CDD0C    mysqld.exe!page_dir_slot_get_rec()[page0page.ic:503]
007189B6    mysqld.exe!page_cur_search_with_match()[page0cur.c:311]
006D3FDC    mysqld.exe!btr_cur_search_to_nth_level()[btr0cur.c:520]
006FD860    mysqld.exe!btr_pcur_open()[btr0pcur.ic:494]
006FE536    mysqld.exe!btr_pcur_open_on_user_rec()[btr0pcur.c:550]
006F3FBA    mysqld.exe!dict_load_indexes()[dict0load.c:610]
006F4327    mysqld.exe!dict_load_sys_table()[dict0load.c:1015]
00706448    mysqld.exe!dict_boot()[dict0boot.c:389]
006BC72A    mysqld.exe!innobase_start_or_create_for_mysql()[srv0start.c:1521]
006AAB56    mysqld.exe!innobase_init()[ha_innodb.cc:1751]
00442C78    mysqld.exe!ha_initialize_handlerton()[handler.cc:434]
00563043    mysqld.exe!plugin_initialize()[sql_plugin.cc:1003]
005678E4    mysqld.exe!plugin_init()[sql_plugin.cc:1212]
004CFD09    mysqld.exe!init_server_components()[mysqld.cc:3848]
004D0426    mysqld.exe!win_main()[mysqld.cc:4315]
004D086D    mysqld.exe!mysql_service()[mysqld.cc:4490]
004D0B10    mysqld.exe!main()[mysqld.cc:4663]
0072809D    mysqld.exe!__tmainCRTStartup()[crt0.c:327]
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.