Hi Tbear
Probably you can download the file and installed again.
SHELL32.dll file information
The process Windows Shell Common Dll belongs to the
software Microsoft® Windows® Operating System by Microsoft
Corporation (
www.microsoft.com).
Description: SHELL32.dll is located in the folder
C:\Windows\System32. Known file sizes on Windows XP are
8450048 bytes (57% of all occurrence), 8240640 bytes,
8350720 bytes, 8348672 bytes, 8817664 bytes, 8336384
bytes, 8227840 bytes.
The program has a visible window. The process is loaded
during the Windows boot process (see Registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersio
n\ShellServiceObjectDelayLoad). The file is not a Windows
system file. SHELL32.dll is a Microsoft signed file.
SHELL32.dll is able to record inputs. Therefore the
technical security rating is 6% dangerous
Important: Some malware can camouflage themselves as
SHELL32.dll, particularly if they are located in
c:\windows or c:\windows\system32 folder. Thus check the
SHELL32.dll process on your pc whether it is pest.