few lines i excluded from registry cleaner

hi,

can someone let me know if these look glaringly important?

Unused File Extension .DMP HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.DMP

Unused File Extension .pf HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.pf

ActiveX/COM Issue InProcServer32\C:\Program Files\Windows Desktop Search\xppreviewproxy.dll HKCR\CLSID\{196BF9A5-B346-4EF0-AA1E-5DCDB76768B1}

(the last one is likely related to my recent uninstallation of windows search 4.0)

i may be acting neurotically, but i'd like to get rid of them. thanks.

EDIT: xp sp3

Welcome to the forum! :)

It's up to you if you want to remove them or not, just make the registry backup when CCleaner prompts that way you can undo it if necessary.

.dmp = Programs and/or Windows dump files after a crash - typically no installed programs read them

.pf = Windows prefetch files - typically no installed programs read them other than Windows maintenance tools

ActiveX/Com issue can be removed if the path of that program/file doesn't exist:

C:\Program Files\Windows Desktop Search\xppreviewproxy.dll

all is well

thanks again.