i faced major issue where wampapache service stoped and wont restart again
here is my sys info
window 7 32bit
apache 2.4.4
php 5.4.6
mysql 5.6.12
wampmyql service is running fine
iam attaching apache error log just few mis b4 the crach.

[Thu Feb 06 16:49:18.316253 2014] [:error] [pid 5660:tid 1496] [client 192.168.20.36:49311] PHP 1. {main}() E:\\ncp.krt\\adder\\useredit.php:0, referer: http://192.168.20.250/ncp.krt/adder/...p?memid=143318
[Thu Feb 06 16:51:37.348897 2014] [:error] [pid 5660:tid 1496] [client 192.168.20.36:49317] PHP Notice: Undefined variable: row_memidt in E:\\ncp.krt\\adder\\useredit.php on line 92, referer: http://192.168.20.250/ncp.krt/adder/...p?memid=143347
[Thu Feb 06 16:51:37.348897 2014] [:error] [pid 5660:tid 1496] [client 192.168.20.36:49317] PHP Stack trace:, referer: http://192.168.20.250/ncp.krt/adder/...p?memid=143347
[Thu Feb 06 16:51:37.348897 2014] [:error] [pid 5660:tid 1496] [client 192.168.20.36:49317] PHP 1. {main}() E:\\ncp.krt\\adder\\useredit.php:0, referer: http://192.168.20.250/ncp.krt/adder/...p?memid=143347
[Thu Feb 06 16:51:40.016502 2014] [:error] [pid 5660:tid 1480] [client 192.168.20.23:49473] PHP Notice: Undefined variable: row_memidt in E:\\ncp.krt\\adder\\useredit.php on line 92, referer: http://192.168.20.250/ncp.krt/adder/...p?memid=143350
[Thu Feb 06 16:51:40.016502 2014] [:error] [pid 5660:tid 1480] [client 192.168.20.23:49473] PHP Stack trace:, referer: http://192.168.20.250/ncp.krt/adder/...p?memid=143350
[Thu Feb 06 16:51:40.016502 2014] [:error] [pid 5660:tid 1480] [client 192.168.20.23:49473] PHP 1. {main}() E:\\ncp.krt\\adder\\useredit.php:0, referer: http://192.168.20.250/ncp.krt/adder/...p?memid=143350
[Thu Feb 06 17:14:15.806284 2014] [mpm_winnt:notice] [pid 4536:tid 392] AH00422: Parent: Received shutdown signal -- Shutting down the server.
[Thu Feb 06 17:14:17.834288 2014] [mpm_winnt:notice] [pid 5660:tid 284] AH00364: Child: All worker threads have exited.
[Thu Feb 06 17:14:17.849888 2014] [mpm_winnt:notice] [pid 4536:tid 392] AH00430: Parent: Child process 5660 exited successfully.