How to find application that is calling for a missing file?

[otcmx]

My problem started when my antivirus detected a trojan virus on a file
gdcyxydi.dll located in system32 folder. I tried to heal the file but wasn't
successful. I quarantined the file and deleted it. Now everytime I started my
computer, I received an error missing file gdcyxydi.dll. So somewhere in my
computer, an application is calling for this file on Windows startup. My
question is, how do I find out which application is calling for this file? So
that I can remove this application or re-install it. I'm currently using
Windows XP professional. Any help would be very much appreciated. Thank you.

 

[R. McCarty]

Normally any dll that is a part of the Windows OS will be automatically
replaced. Apparently, this Dll isn't part of Windows and may be part of
the virus itself. What you are dealing with is a Registry call to load/run
the module. Download AutoRuns and run. It will start with the Everything
(TAB) shown - scan the Path column looking for that Dll name and when
found Right Click the entry then delete it.
http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx

 

[otcmx]

That fixed the problem. Thank you very much R. McCarty, I really appreciate it.