Here's one bit of information and advice on the verclsid.exe file.
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Verclsid.exe
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File Name: Verclsid.exe
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Description:
Verclsid.exe is a Windows security pack used to verify a COM object before it is instantiated by Windows Explorer. Leave it alone to prevent your system being compromised by malware that exploits the addressed vulnerability.
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Fix Verclsid.exe Errors: Free Scan
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Security Issues: N/A
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Block/Remove:
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Verclsid.exe, Verclsid - File Analysis
The file itself is part of a security fix developed by Microsoft due to a known vulnerability found in Windows Explorer.
http://www.microsoft.com/technet/security/Bulletin/MS06-015.mspx