Step 1.
Make sure the computer is not connected to the Internet through dial-up. If so, terminate the connection first. If you're using a LAN connection skip to section LAN.

Step 2.
Start Windows Explorer. Make sure that your system is configured to show all registered extensions. Go to View > Options and check the appropriate settings. Switch to C:\Windows\System directory and delete the files 'ska.exe' and 'ska.dll'.

Step 3.
In C:\Windows\Sytem directory, rename the file 'wsock32.dll' to 'wsock32.bak'

Step 4.
In C:\Windows\System directory, rename 'wsock32.ska' to 'wsock32.dll'.

Step 5.
Delete the downloaded file, usually named 'HAPPY99.EXE' and empty your recycle bin.

Step 6.
Click Start > Shutdown > Reboot.

NOTES: Windows prevents you to do step 2 and 3 above if the machine is still connected to the Internet. The file "windows\system\wsock32.dll" is used whenever the machine is connected to Internet (i.e. through dial-up or LAN connection).

LAN:
If you are connected to Internet through LAN (i.e. in the office or cable modem), you need to do the following:

Step 1.
Start > Shutwdown > Restart in MS DOS mode.

Step 2.
You should be at C:\Windows prompt. Type CD \System. You should be at C:\Windows\System prompt.

Step 3.
Type RENAME WSOCK32.DLL WSOCK32.BAK

Step 4.
Ttype RENAME WSOCK32.SKA WSOCK32.DLL

Step 5.
Type DEL SKA.EXE

Step 6.
Type DEL SKA.DLL

Step 7.
Press CTRL-ALT-DEL and allow Windows to restart.

Congratulations, Happy99.exe has now been removed from your system.