How the IIS application pool service stops resolving

Original: http://www.cnblogs.com/tangge/p/4193002.html

I have failed to configure IIS7 (Internet information Server) on my Windows7 flagship today and have failed to start the service, accessing the local network hint "Service Unavailable HTTP Error 503. The service is unavailable ". DefaultAppPool automatically stops after startup. Resolute View system events, this error actually and QQ Pinyin input method Related:

1.Windows cannot allow you to log in because your profile cannot be loaded. Check to see if you are connected to the network and the network is working properly.

Details – Complete only part of the readprocessmemory or WriteProcessMemory request.

2.Windows process Activation Service failed to create worker process for application pool "DefaultAppPool". The data field contains the error number.

3. The application Pool "DefaultAppPool" will be automatically disabled because of a series of errors in the process serving this application pool.

4.Windows cannot copy file \\?\c:\users\default\appdata\roaming\tencent\qqpinyin\mergecell.dict to location \\?\c:\users\ Defaultapppool\appdata\roaming\tencent\qqpinyin\mergecell.dict. This can be caused by network failure or security permissions.

More information – Access denied.

5.Windows cannot find the local configuration file and is using a temporary profile to log you in. When you log off, changes made to this profile are lost.

One solution on the web is to change the identity of the application's process model from applicationpoolidentify to NetworkService, but I haven't tried it. For this applicationpoolidentity, by default, the application pool identity account is selected. Creating an application pool identity account dynamically while launching an application pool is a new feature of IIS7, so this account is the safest for the application, and I'm a bit stubborn, regardless of whether he's used it or not, I want to solve it from the problem itself, bypassing the problem without meaning.

After all, applicationpoolidentity is a virtual account, because it failed to start, so I did not see his folder name in C:\Users, and it was impossible to manually create a user profile. There have been many methods in the middle and this error has always occurred. Finally view this C:\Users\Default\AppData\Roaming\Tencent\QQPinyin\mergecell.dict file found that he only had permission to administrators, decisive to the Users permissions, Start DefaultAppPool again, and then localhost, you are done.