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

From: hanskrentel at yahoo dot de Operating system: Windows 8 64bit PHP version: 5.5.18 Package: cURL related Bug Type: Bug Bug description:Windows Message Box "php.exe - No Disk" 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 bug report at https://bugs.php.net/bug.php?id=68312&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68312&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68312&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68312&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68312&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68312&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68312&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68312&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68312&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68312&r=support Expected behavior: https://bugs.php.net/fix.php?id=68312&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68312&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68312&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68312&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68312&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68312&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68312&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68312&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68312&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68312&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68312&r=mysqlcfg