Programs and Features will not open

When the "Programs and Features" icon is selected in Control Panel in Vista Business - it will not open.  No error message appears - it just will not open.  No event is posted in the event log.
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JohnBusiness Consultant (Owner)Commented:
I can only think of a couple of reasons (this is a basic feature):
1. The userid you are using does have admin permissions
2. You have some sort of virus, malware or basic system corruption.
... Thinkpads_User
control.exe appwiz.cpl
also not work?
(Type it from a command prompt)
If no good, I've read of someone doing the following to fix it (also from a command prompt):

regsvr32 appwiz.cpl
regsvr32 mshtml.dll
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cwhatleyAuthor Commented:
Thinkpads -  User is setup as administrator with all the usual permissions... and no malware, viruses or adware - system is as clean as a whistle! :-)

cantoris - The "control.exe appwiz.cp"l command causes just the outline of a window to appear for about half a second - then it disappeared.  

The "regsvr32 appwiz.cpl" command returns this error:
The module "appwiz.cpl" may not be compatible with the version of Windows that you are running.  Check if the module is compatible with an x86 (32-bit) or x64 (64-bit) version of regsvr32.exe.  This may be onto something as this Windows vista started out as version Home Premium and was upgraded to Vista Business (32-bit).

The "regsvr32 mshtml.dll" command returns this error:
The module "mshtml.dll" was loaded but the entry-point DllRegistryServer was not found.  Make sure that "mshtml.dll" is a valid DLL or OCX file and then try again.

Thanks for your input everybody!

cwhatleyAuthor Commented:
Oh - one more thing....  Vista SP1 will not load.   Error says - "an unknown error occurred"
This sounds a rather more fundamental error then.
Have you tried
JohnBusiness Consultant (Owner)Commented:
I would say you either have some significant virus/malware or software corruption as suggested in my first post, or possibly have a hardware problem (memory or hard drive).

If you do hardware tests and they work out OK, then you probably need to save your data, re-format and re-image your system. ... Thinkpads_User
cwhatleyAuthor Commented:
Client is not willing to do a re-format and re-install and he came up with his own solution - to give this computer to his nephew, who is an aspiring computer geek - and get a new PC with Windows XP Pro on it.  Thanks to all for your input.

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Windows Vista

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