Error on APPCRASH

Question

User-1466065877 posted

Dear All,

When I put the web project to IIS and launch it, sometimes it throws the error "APPCRASH". Is there any reason on showing this error?

Faulting application name: w3wp.exe, version: 8.5.9600.16384, time stamp: 
Faulting module name: MSVCR71.dll, version: 7.10.3052.4, time stamp: 
Exception code: 0xc0000005
Fault offset: 0x00002cd2
Faulting application path: C:\Windows\SysWOW64\inetsrv\w3wp.exe
Faulting module path: C:\Windows\SYSTEM32\MSVCR71.dll

The application pool of the web application setting:
.NET 4.0
Enable 32-bit applications: True

Answer 1

User-782232518 posted

The crash log can be interpreted as below,

IIS worker process (w3wp.exe) crashed by an access violation (c0000005) on Visual C++ runtime (MSVCR71.dll). As none of Microsoft IIS components use VC++ runtime, so we can only guess a module used in your web app (ISAPI or anything else) is the culprit. A crash dump analysis should show which module it is and might also reveal more about the crash.

If you are not familiar with dump analysis, I suggest you open a support case via http://support.microsoft.com