Bug #68312 [Com]: Windows Message Box "php.exe - No Disk"

Edit report at https://bugs.php.net/bug.php?id=68312&edit=1 ID: 68312 Comment by: grefix at gmail dot com Reported by: hanskrentel at yahoo dot de Summary: Windows Message Box "php.exe - No Disk" Status: Suspended Type: Bug Package: cURL related Operating System: Windows 8 64bit PHP Version: 5.5.18 Block user comment: N Private report: N New Comment: Happenend to have this same issue. It appears that the curl extension specifically wants to access the drive with letter F: Workaround is to remap the drive to use a different drive letter (as it will be used for removable media this shouldn't generate other issues) Previous Comments: ------------------------------------------------------------------------ [2015-01-21 18:27:45] adam at tornadowebhosting dot com I'm experiencing the same issue. But it's not pointing to a flash drive, it's pointing to a built in SD card slot, that's something I can't easily disconnect. ------------------------------------------------------------------------ [2014-11-04 17:33:25] ab@php.net Ok, lets suspend it then. From how it looks it's not related to PHP itself anyway but to the environment change. If you come to debugging this again, feel free to reopen this. Thanks. ------------------------------------------------------------------------ [2014-10-28 17:43:59] hanskrentel at yahoo dot de I did already check with procmon for the initial report but couldn't reveal anything substantial. It's perhaps OK to have it documented for the moment. I can hotfix by disabling curl on the fly and/or removing the USB stick from the computer. If this gets too much on my nerves I'll probably look again. This is rather esoteric. ------------------------------------------------------------------------ [2014-10-28 08:36:55] ab@php.net Tcha, if the program from the stick changes some env, that would affect anything else, not just PHP. procmon might reveal more on what files are claimed http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx . Thanks. ------------------------------------------------------------------------ [2014-10-27 19:08:39] hanskrentel at yahoo dot de Description: ------------ When running php.exe like php --version a Windows Message-Box (Win API MsgBox) pops up with title "php.exe - No Disk" the error symbol (Circle, background filled in red, white X inside it) with the message "There is no disk in the drive. Please insert a disk into drive F:." and a group of three buttons below (Cancel, Retry and Continue). If running php.exe like php --help The box does not appear. This does only happen when the system has an USB-stick attached that fakes a drive to invoke a driver then to unmount the drive again so you can't look there in. Somehow the drive is still registered. I don't know why php needs to access this drive anyway. With php -n --version the message box does not appear. Disabling all extensions in php.ini turns out to not have the message box. Re-enabling extension after extension turns out that extension=php_curl.dll causes this (curl extension). I suspect this is related to some default files (e.g. _curlrc) / environment variables. Looking for file-system-activity with Process Monitor didn't made me spot anything more specific. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68312&edit=1