An Internet Information Services (IIS) worker process is a windows process (w3wp.exe) which runs Web applications, and is responsible for handling requests sent to a Web Server for a specific application pool.
It is the worker process for IIS. Each application pool creates at least one instance of w3wp.exe and that is what actually processes requests in your application. It is not dangerous to attach to this, that is just a standard windows message.
Related Posts:
- IIS: Where can I find the IIS logs?
- applicationhost.config file path in IIS 7, 7.5, 8, 8.5 and IIS 10?
- The HTTP request was forbidden with client authentication scheme ‘Anonymous’. The remote server returned an error: (403) Forbidden
- How do I resolve “HTTP Error 500.19 – Internal Server Error” on IIS7.0
- WCFTestClient The HTTP request is unauthorized with client authentication scheme ‘Anonymous’
- WCFTestClient The HTTP request is unauthorized with client authentication scheme ‘Anonymous’
- System.ComponentModel.Win32Exception: Access is denied Error
- PHP Fatal error: Call to undefined function mssql_connect()
- How to solve “Could not establish trust relationship for the SSL/TLS secure channel with authority”
- The maximum message size quota for incoming messages (65536) has been exceeded
- What should I do to make sure that IIS does not recycle my application?
- HTTP Error 503, the service is unavailable
- What is a stack trace, and how can I use it to debug my application errors?
- What do I do when my program crashes with exception 0xc0000005 at address 0?
- Is it possible to “decompile” a Windows .exe? Or at least view the Assembly?
- What is the difference between XAMPP or WAMP Server & IIS?
- Ran Pycharm debug which ended with exit code -1
- How to track down a “double free or corruption” error
- What does ‘IISReset’ do?
- How to track down a “double free or corruption” error
- Chrome: Uncaught SyntaxError: Unexpected end of input
- What does ‘IISReset’ do?
- Failed to load PDF document in Chrome
- What is WCF? and what can it do?
- failed to load resource: the server response with a status 500 (internal server error)
- The page was not displayed because the request entity is too large on IIS
- The page was not displayed because the request entity is too large on IIS
- How to Fix ERR_HTTP2_INADEQUATE_TRANSPORT_SECURITY in IIS on Windows Server 2016
- WCF vs ASP.NET Web API
- wntdll.pdb not loaded – Can’t see the exception
- Unfortunately MyApp has stopped. How can I solve this?
- wntdll.pdb not loaded – Can’t see the exception
- W3WP.EXE using 100% CPU – where to start?
- HTTP Error 403.14 – Forbidden – The Web server is configured to not list the contents of this directory
- Unfortunately MyApp has stopped. How can I solve this?
- Cannot read configuration file due to insufficient permissions
- Access to the path is denied
- PHP parse/syntax errors; and how to solve them
- Visual Studio debugger error: Unable to start program Specified file cannot be found
- How can I write to the console in PHP?
- Verify return code: 20 when testing OpenSSL
- Remote debugging a Java application
- How to Determine IUSR Password
- How can I secure passwords stored inside web.config?
- How can I use adb over WiFi?
- What does aspnet_regiis.exe do
- OLE DB Provider for ODBC Drivers Error “80004005′
- Cannot read configuration file due to insufficient permissions
- How to redirect a URL path in IIS?
- Undefined reference to class constructor, including .cpp file fixes
- How to use gdb with pipes and stdin
- How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this document.” warning?
- Is there a built-in function to print all the current properties and values of an object?
- Console.log not working at all
- Collection was modified; enumeration operation may not execute
- General way of solving Error: Stack around the variable ‘x’ was corrupted
- Connecting to Git team provider failed
- Bad Request- Invalid Hostname while connect to localhost via wifi from mobile phone
- HTTP Error 500.19 and error code : 0x80070021
- Debug assertion failed
- GET request to IIS returns Microsoft-HttpApi/2.0
- Paused in debugger in chrome?
- Cannot open database “test” requested by the login. The login failed. Login failed for user ‘xyz\ASPNET’
- System.Data.SqlClient.SqlException: Login failed for user
- Debug Assertion Failed: _CrtIsValidHeapPointer(block)
- The connection to the website was reset. Error Code: INET_E_DOWNLOAD_FAILURE
- Adding message to assert
- Check if object exists in JavaScript
- Port 80 is being used by SYSTEM (PID 4), what is that?
- What’s the difference between nexti and stepi in gdb?
- What is the purpose of the vshost.exe file?
- Eclipse java debugging: source not found
- Valgrind complains with “Invalid write of size 8”
- Source information missing from the debug information for this module – PDB successfully loaded
- An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode
- R debugging: “only 0’s may be mixed with negative subscripts”
- JavaScript console.log causes error: “Synchronous XMLHttpRequest on the main thread is deprecated…”
- The service cannot accept control messages at this time
- Is there a good Valgrind substitute for Windows?
- Undefined reference to class constructor, including .cpp file fixes
- “This operation requires IIS integrated pipeline mode.”
- Web Service vs WCF Service
- Could not establish secure channel for SSL/TLS with authority ‘*’
- windows could not start service on local computer error 5 access is denied
- Maximum request length exceeded.
- CS1617: Invalid option ‘6’ for /langversion; must be ISO-1, ISO-2, 3, 4, 5 or Default
- Fixing Segmentation faults in C++
- Bad Request – Invalid Hostname IIS7
- How do I debug a stand-alone VBScript script?
- The remote server returned an error: (405) Method Not Allowed. WCF REST Service
- does not implement interface member
- Why is HttpContext.Current null?
- What is the relationship between WCF, Rest and SOAP?
- IIS error, Unable to start debugging on the webserver
- In which cases does program exit with 0x40010004 code?
- What is a “first chance exception”?
- gdb: No symbol “i” in current context
- How to troubleshoot “System.Web.HttpException (0x80004005): File does not exist”?
- How can I fix the “No certificates found – The app Chrome has requested a certificate” Android / Google Chrome issue
- How handle Application Error Exception code: 0xc00000fd