our exchange system is exchange 2003. Everything works well expect owa spell check. Users meet this error “The spelling in this item can't be checked. Try again later”. Is my exchange corrupted? Will it affect other function?

This is what i would start with to troubleshoot this error message: o In Internet Services Manager, make sure that the Exchweb/Bin/Spell virtual directory exists and that it contains the dictionary files. o In Internet Services Manager, make sure that that the authentication methods set on the /Spell virtual directory are inherited from the /Bin virtual directory. To verify the authentication methods, follow these steps: 1. Open IIS Manager. 2. Right-click the /Exchweb virtual directory, and then click Properties. 3. Click the Directory Security tab. 4. Click Editnext to Anonymous access and authentication control. 5. Click Integrated Windows authentication, and then click OK. 6. Click Apply. 7. If you are prompted to do so, click Select All in the Inheritance Overrideswindow to select all the Child Nodes in the window, and then click OK. 8. Click Editnext to Anonymous access and authentication control. 9. Click to clear the Integrated Windows authentication check box, and then click OK. 10. Click OK, o In Internet Services Manager, make sure that that the Execute permissions that are set on the /Spell virtual directory are inherited from the /Bin virtual directory. Specifically, the Execute permissions should be set for Scripts and Executables. o Make sure that all OWA users are using Internet Explorer 5.0 or later. o Investigate whether antivirus programs or other programs that perform file-level scanning are preventing the spelling checker from working correctly. Source http://support.microsoft.com/kb/825430Jasjit Singh Dhindsa | ITIL v3 | IASA Foundation Certified | MCITP:Exchange 2010 | Exchange 2007 | MCTS:OCS 2007 | Exchange 2010 | Exchange 2007 | MCSA:Messaging | Security | MCSE:Messaging | Security

This is what i would start with to troubleshoot this error message: o In Internet Services Manager, make sure that the Exchweb/Bin/Spell virtual directory exists and that it contains the dictionary files. o In Internet Services Manager, make sure that that the authentication methods set on the /Spell virtual directory are inherited from the /Bin virtual directory. To verify the authentication methods, follow these steps: 1. Open IIS Manager. 2. Right-click the /Exchweb virtual directory, and then click Properties. 3. Click the Directory Security tab. 4. Click Editnext to Anonymous access and authentication control. 5. Click Integrated Windows authentication, and then click OK. 6. Click Apply. 7. If you are prompted to do so, click Select All in the Inheritance Overrideswindow to select all the Child Nodes in the window, and then click OK. 8. Click Editnext to Anonymous access and authentication control. 9. Click to clear the Integrated Windows authentication check box, and then click OK. 10. Click OK, o In Internet Services Manager, make sure that that the Execute permissions that are set on the /Spell virtual directory are inherited from the /Bin virtual directory. Specifically, the Execute permissions should be set for Scripts and Executables. o Make sure that all OWA users are using Internet Explorer 5.0 or later. o Investigate whether antivirus programs or other programs that perform file-level scanning are preventing the spelling checker from working correctly. Source http://support.microsoft.com/kb/825430Jasjit Singh Dhindsa | ITIL v3 | IASA Foundation Certified | MCITP:Exchange 2010 | Exchange 2007 | MCTS:OCS 2007 | Exchange 2010 | Exchange 2007 | MCSA:Messaging | Security | MCSE:Messaging | Security

See KB above or this may be related if youre publishing OWA -http://support.microsoft.com/kb/820378Sukh

See KB above or this may be related if youre publishing OWA -http://support.microsoft.com/kb/820378Sukh

It is owaspell.dll error.