If you would like to to customize your Internet Explorer error messages, write an error message that you want to see (as HTML) and store it somewhere on you harddisk, open Registry Editor (Start, Run, regedit) and navigate to the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\AboutURLs
Edit the appropriate keys to link to the relevant file that you have created.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\AboutURLs
Edit the appropriate keys to link to the relevant file that you have created.