| The earlier versions of Norton System Works | | | | Personal Folder |
| included a component called ThorConnWndClass | | | | Solution |
| as a part of 'Crash Guard' Symantec. This | | | | You can try these solutions to overcome the |
| component can cause several issues especially | | | | existing issue: |
| when you are running MS Outlook. It can cause | | | | 1-If Norton System Works is installed, uninstall it |
| Outlook to hang unexpectedly and result several | | | | manually. This most of the times resolves the |
| ThorConnWndClass errors. However, in some | | | | issue. |
| cases, the same problem can also root from | | | | 2-Recreate the Outlook bar using |
| other issues like corruption of Outlook PST, which | | | | ResetOutlookBar switch. |
| is curable through Outlook PST Repair solutions. If | | | | 3-Unload the installed Outlook add-ins. Click Tools | |
| PST is corrupt, you can try solutions like running | | | | Options | Other tab | Advanced | Add-in Manager. |
| Inbox Repair Tool and restoring from backup. | | | | If this works, you can later try reloading these |
| As an instance of such problems, consider you | | | | add-ins one at a time. |
| try to send or receive an email in MS Outlook. | | | | 4-To correct Outlook settings issue, you can |
| The process ceases and you receive few errors, | | | | rename outcmd.dat and extend.dat files after |
| such as below: | | | | closing the application. |
| “ThorConnWndClass unable to close” | | | | 5-Run 'Detect and Repair' to repair Outlook |
| Outlook freezes and you need to close the | | | | installation |
| application forcefully. The similar behavior may also | | | | 6-Contact your network administrator to solve |
| be observed when viewing the contents of mail | | | | the email issues on server. If damaged Personal |
| folders or performing any other email function. | | | | Folder is the case, run Inbox Repair Tool |
| Cause | | | | (Scanpst.exe) to repair the file. You can delete the |
| Some of the possible reasons of this problem are: | | | | damaged file if a suitable backup is present. |
| 1-ThorConnWndClass of Norton System Works | | | | There are several PST Repair solutions available |
| 2-Damaged Outlook bar | | | | that can repair corrupted PST in case the Inbox |
| 3-Corrupted Outlook add-ins | | | | Repair Tool fails. These Outlook PST Repair tools |
| 4-Corrupted Outlook settings | | | | use high-end scanning algorithms to analyze and |
| 5-Issues in Outlook installation | | | | fix corruption issues with PST. |
| 6-Corrupt email(s) on server or damaged Outlook | | | | |