Recently the following undocumented Windows 98 error-codes were found. Microsoft forgot to explain them in the manuals, so they will be spread via the Internet:
WinErr: 001
Windows loaded - System in danger
WinErr: 002
No Error - Yet
WinErr: 003
Dynamic linking error - Your mistake is now in every file
WinErr: 004
Erroneous error - Nothing is wrong
WinErr: 005
Multitasking attempted - System confused
WinErr: 006
Malicious error - Desqview found on drive
WinErr: 007
System price error - Inadequate money spent on hardware
WinErr: 008
Broken window - Watch out for glass fragments
WinErr: 009
Horrible bug encountered - God knows what has happened
WinErr: 00A
Promotional literature overflow - Mailbox full
WinErr: 00B
Inadequate disk space - Free at least 50MB
WinErr: 00C
Memory hog error - More Ram needed. More! More! More!
WinErr: 00D
Window closed - Do not look outside
WinErr: 00E
Window open - Do not look inside
WinErr: 00F
Unexplained error - Please tell us how this happened
WinErr: 010
Reserved for future mistakes by our developers
WinErr: 013
Unexpected error - Huh ?
WinErr: 014
Keyboard locked - Try anything you can think of.
WinErr: 018
Unrecoverable error - System has been destroyed. Buy a new
one. Old Windows licence is not valid anymore.
WinErr: 019
User error - Not our fault. Is Not! Is Not!
WinErr: 01A
Operating system overwritten - Please reinstall all your
software. We are terribly sorry.
WinErr: 01B
Illegal error - You are not allowed to get this error.
Next time you will get a penalty for that.
WinErr: 01C
Uncertainty error - Uncertainty may be inadequate.
WinErr: 01D
System crash - We are unable to figure out our own code.
WinErr: 01E
Timing error - Please wait. And wait. And wait. And wait.
WinErr: 01F
Reserved for future mistakes of our developers.
WinErr: 020
Error recording error codes - Additional errors will be
lost.
WinErr: 042
Virus error - A virus has been activated in a dos-box. The
virus, however, requires Windows. All tasks will
automatically be closed and the virus will be activated
again.
WinErr: 079
Mouse not found - A mouse driver has not been installed.
Please click the left mouse button to continue.
WinErr: 103
Error buffer overflow - Too many errors encountered.
Additional errors may not be displayed or recorded.
WinErr: 678
This will end your Windows session. Do you want to play
another game?
WinErr: 683
Time out error - Operator fell asleep while waiting for
the system to complete boot procedure.
WinErr: 815
Insufficient Memory - Only 50,312,583 bytes available