I receive a strange message when I try to shut down computer.  Its give me:
nj6md5zm.exe-DLL    Initialization Failed.  The application failed to
initialize because the window station is shutting down.  I can't find
anywhere a place that shows me what those letters and numbers refer to.  I
then get a Pop up behind that says:  End Program-Invisible Window.  The
program is not respoonding.  To return to Windows and check the status.
		
		
	 
I would suspect a virus, trojan or worm in your case. First, the file named
in the error is a weird (random?) mix of 8 characters - a common symptom of
an intrusion or infection. Secondly, a search with google for
"nj6md5zm.exe" yields zero results.
You should do a full system scan with an up to date antivirus program. If
you think your installed antivirus program may have been compromised or
just want a second opinion, try one of the online scanners such as:
Panda:
http://www.pandasoftware.com/activescan/
TrendMicro's Housecall:
http://housecall.trendmicro.com/
RAV (instruction page with a link to scan page):
http://www.ravantivirus.com/scan/howto-scan.php
Other malware has been known to generate randomly names with 8 characters
as well, so a full scan with a good anti-spyware program should be
performed as well.
AdAware:
http://www.lavasoftusa.com/software/adaware/
Microsoft AntiSpyware (beta but I like it):
http://www.microsoft.com/athome/security/spyware/software/default.mspx
Microsoft maintains a number for no charge support for virus and other
security related support: 1-866-PCSAFETY for US and Canada.
Numbers for other regions available from a link on this page:
http://support.microsoft.com/default.aspx/gp/securityhome