Установил пакет denwer на ноутбук и десктоп (оба windows 7). На ноутбуке сразу все заработало. На десктоп тоже поставилось без проблем, но процесс httpd сам завершается через 3-5 секунд после запуска. Вот лог error.log
[Sat Jan 04 16:46:40 2014] [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366)
[Sat Jan 04 16:46:41 2014] [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366)
[Sat Jan 04 16:46:41 2014] [notice] Apache/2.2.22 (Win32) mod_ssl/2.2.22 OpenSSL/1.0.1c PHP/5.2.12 configured -- resuming normal operations
[Sat Jan 04 16:46:41 2014] [notice] Server built: Apr 20 2012 18:42:30
[Sat Jan 04 16:46:41 2014] [crit] (OS 87)Параметр задан неверно. : Parent: Failed to create the child process.
[Sat Jan 04 16:46:41 2014] [crit] (OS 6)Неверный дескриптор. : master_main: create child process failed. Exiting.