Here are some old notes on PrettyPark

I think it more likely you have not removed PrettyPark Worm correctly
as
this is not a Win9x file.

http://us.mcafee.com/virusInfo/default.asp?id=description&virus_k=10175
An extract:
-------
Indications Of Infection
This program, when run, will display a "3D Pipe" screen saver and then
will copy itself to FILES32.VXD in WINDOWS\SYSTEM folder. It then
modifies the registry key value "command" located in the location:

HKEY_LOCAL_MACHINE\Software\CLASSES\exefile\shell\open

from "%1" %* to FILES32.VXD "%1" %*. This in essence will cause the
FILES32.VXD to run during the execution of any exe file.
--------

If you cannot follow it all, here is the part in the Registry to be
changed back:

Make up a file from the lines below. Copy into a file called
exefix.reg
which should be created in Notepad. Do not retype, copy in case of
errors. The 1st line in the file is  the line REGEDIT4
The last line must be blank.
Make sure your mail or news reader does not add any spaces to the end
of a line.
Doubleclick to restore the association.

-----copy below this line exefix.reg------------
REGEDIT4

[HKEY_CLASSES_ROOT\exefile\shell\open\command]
@="\"%1\" %*"

---- end file above here

More information:
http://www.symantec.com/avcenter/venc/data/prettypark.worm.html

http://vil.nai.com/vil/virusRemovalInstructions.asp?virus_k=10175

Terminal Server Programs Do Not Run, System Cannot Find Files32.vxd
http://support.microsoft.com/support/kb/articles/q249/9/21.asp

"atikey 32.exe" or atikey32.exe"?
Atikey32.exe is valid for an ATI video card.
If it is a valid file, then reinstall, though I cannot see why that
would make the system inoperable and I suggest you look up
Please supply more details of what error messages you get and exactly
what you mean by "can't run the machine"

I strongly suggest you read your AV site or supply more details here.

...Alan