Now and again the controlling DLL file(s) for MSN becomes unregistered and MSN users receive MAILHOST and/or DOWNLOADHOST problem messages and can't connect to their mail. Many times this is caused by registry cleaning programs that incorrectly flag the MSN DLL files for deletion from the registry which effectively unregisters the files with the MSN software, resulting in the errors.

Often computer users complain that images viewed on one computer do not look the same when viewed on another. Sometimes the images are better; often worse. This page attempts to address that topic.

Problem: You are trying to copy a small file to a USB device with lots of room on it but can't. Why not?

In these days of extra large hard disks many try to copy large files from a DVD but find that can't even though there is plenty of free space on the hard disk. The most likely cause for this is not some sort of copy protection but that the file being copied is too large for the file system to handle.

Newer browsers have security features designed to help you determine if a website you are browsing is a valid and perhaps trusted site. While the intent is good, the messages users get can be confusing and fear-inducing for not really good reason. Let's see why.

At times you may see "Action canceled" when trying to access content in a .CHM Windows help file. The most likely cause of this is a security patch Microsoft issued which blocks access to such content when the file is stored on a network device. This page tells how to fix this problem.

A file of the form TFTPxxx (where xxx = numbers) attempts to run at system start and Windows does not know how to do that. Why does it happen?