Windows Vista Explorer Crashes

I have recently been getting some intermittant explorer crashes thinking it may have been a shell extention causing it I used ShellExView to see what it may be but nothing seemed out of place, may be wrong as shows 324 items!

The error reporting from Vista shows the following:

Problem signature
Problem Event Name: APPCRASH
Application Name: Explorer.EXE
Application Version: 6.0.6001.18000
Application Timestamp: 47918e5d
Fault Module Name: ContextHandler.dll_unloaded
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 2a425e19
Exception Code: c0000005
Exception Offset: 081622d4
OS Version: 6.0.6001.2.1.0.768.3
Locale ID: 2057
Additional Information 1: fd00
Additional Information 2: ea6f5fe8924aaa756324d57f87834160
Additional Information 3: fd00
Additional Information 4: ea6f5fe8924aaa756324d57f87834160

Extra information about the problem
Bucket ID: 695430457

Which makes me think it could be a shell extention, I presume the "Additional Information 2" is the CLSID number but in ShellExView they are not evident unless you click on the file name with 324 items it is not an easy task.

Does anybody know from the information supplied as to what program is causing it?

 

Whoops, just noticed that ShellExView does show the CLSID number but none the wiser as "ea6f5fe8924aaa756324d57f87834160" is not shown as a shell extn.

 

If I see any Explorer.exe errors, I run Error Checking (CHKDSK). Also check any additional drives (external drives, memory sticks, etc) and any software that runs them.

 

Thank you for your replies, managed to find the culprit and it appears that an old copy of Roxio had not uninstalled and was causing problems, used Windows Defender/Tools Software Explorer and managed to find some errors.

Still had some minor issues, so I put an image back (Acronis) from last month (Pre Roxio) and all is stable......for now!