Troubleshooting MSN Explorer mailhost errors

Reading time: 2 – 3 minutes

If you are familiar with the Microsoft MSN Explorer program, you might have encountered mailhost file errors before but for those of you who aren’t, then this resource would be certainly worth note taking. Just to give you a brief background, MSN Explorer is a web browser that works similarly to Microsoft’s Internet Explorer, except that MSN Explorer integrates several features of MSN and Windows Live, such as Windows Live Hotmail and Windows Live Messenger. 

The most common error that a user would encounter is the inablity to retrieve and view emails, If Windows is unable to open files with the File Extension MailHost(.mailhost), that simply means you may not have the appropriate program installed or, you may have registry errors.

When dynamic link library files(.dll files) used for MSN are de-registered,that leads to the problem. A relatively known cause of this error is when a registry cleaning program incorrectly flags or removes dynamic link library files associated with the program from the registry. 

Only the re-registration of the lost .dll file can resolve File Extension MailHost errors which can be done by simply following a convenient process. To resolve the problem with the .MAILHOST file extension you can try this solution which has been confirmed by MSN to work: Click on the Start and then Run items. In the dialog box type:

regsvr32 c:progra~1msnmsncorefilesmailui.dll

afterwards, click on OK or press the Enter key(use cut/paste to be certain you’ve got it right). In case it wraps in your display, this is all one line with a space between the regsvr32 and pathname. This reregisters the mailui.dll file and fixes the error. If you are signed into MSN, sign out and then sign back in and everything should work fine. If, for some reason it doesn’t, repeat the first step and contact MSN support. A suggested reading can be found on http://www.fileextensionmailhost.com in case you need further reference.

Tags: file extension mailhost, mailhost errors, MSN Explorer errors, Troubleshoot MSN Explorer

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