X509Certificate2 makes IIS crash
.net, certificate, x509certificate, x509certificate2
Solution
I had a similar problem, also on Windows Server 2012, which crashed IIS, when using
new X509Certificate2(fileName, keyPassword, X509KeyStorageFlags.Exportable)
This was fixed by changing the constructor to
new X509Certificate2(fileName, keyPassword, X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.Exportable)
Problem
When newing up an instance of `X509Certificate2(string, string)` my IIS process simply crashes. No .Net exception, no nothing, except of this in my event log ``` Faulting application name: w3wp.exe, version: 8.0.9200.16384, time stamp: 0x50108835 Faulting module name: ntdll.dll, version: 6.2.9200.16420, time stamp: 0x505ab405 Exception code: 0xc0000374 Fault offset: 0x00000000000ea485 Faulting process id: 0x102c Faulting application start time: 0x01ce10301e250c4d Faulting application path: c:\windows\system32\inetsrv\w3wp.exe Faulting module path: C:\Windows\SYSTEM32\ntdll.dll Report Id: 5e55321c-7c23-11e2-93f9-00155d8a0f17 Faulting package full name: ``` Im pretty stunned and don't know where to start looking. When attaching a debugger to the process, i'm able to break unto this line, but when stepping over it the the whole thing crashes. ``` _certificate = new X509Certificate2(pfxFile, pfxPassword); ``` pfxFile is a valid path, if i change it i immediately get a correct .Net PathNotFound exception. Server is Windows 2012, running IIS8 and .Net 4.5. Update This article describes the same problem where a solution is to make sure the App Pool identity has LoadUserProfile enabled.