Programs are missing from Add/Remove in XP control panel

When I open this part of control panel it only lists the programs from A to C. The rest are not listed. Therefore I cannot uninstall say S  ymantec.
I would guess that the registry is corrupt. Is this fixable?
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Brian PringleSystems Analyst II, SCM, ERPCommented:
I found this article related to an issue that is caused by AutoCad.

They apparently had a problem where they created a registry entry in the following location with a negative number as the "DisplayIcon" value.

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\%ApplicationPID% (or name)\DisplayIcon

Note: Backup the Uninstall hive by Exporting it, in case you have any problems and need to be able to restore it.

Look at the value for DisplayIcon for the last application that shows up in the list.  If it is a negative number, just delete the "DisplayIcon" entry.

If the value is not a negative number, delete the entire hive on the left-hand side.  You can always restore it from the file that you exported previously.
Select  the show update tab in Add or Remove program page and see, usually all the programs which received updates from internet becomes invisible under add remove programs after enabling this tab you might able to see the missing programs

Sandeep raj
One way I can think of that might work, is to use System Restore to go back to a time when those programs are listed in Add/Remove Programs.  See if you can export the HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall key, then use System Restore to set it back to the latest date.  You can modify the .reg file in a text editor to include only the programs you want to be able to uninstall.  Then double-click the .reg file to import that info into the registry.  (Make a backup of the current Uninstall key first, just in case.)

You should be able to uninstall many programs without it being in Add/Remove programs by running its setup file.  Usually it will detect the program installed and ask if you want to remove it.
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Brian PringleSystems Analyst II, SCM, ERPCommented:
I have been trying to reproduce your issue by changing the value on some of my applications in the registry to a negative number and the best that I have been able to come up with is to have only *that* application not show up in the Add or Remove Programs list.  

Can you export the hive for the last program to show in the list and then post the contents of that text file here?  Let me know if you need help doing this.
ozgaryAuthor Commented:
Thanks so far. I will not be able to get at this computer for a couple of weeks.
Sandeepraj - I did try this with no result.
Overall it does seem that the registry is the problem.
What if I reloaded Service Pack 2. Would this perhaps repair it by default?
( I am not suggesting SP2 was the cause of this in the first place.)
ozgaryAuthor Commented:
Although I did a search of microsoft before I posted I have now found this fairly complex KB article.
I think it maybe relevant.

Hi ozgary

I have come across the same issue that btpringle is talking about, do you get a big blank white space below the last program name? If so it sounds like the AutoCad problem, try using the down arrow key after highlighting one of the entries to see if you can scroll down to 'D' and onwards.


ozgaryAuthor Commented:
Yes it is a big white space but I am not sure if I can scroll down. i think we should pause here until I can try some of the above suggestions.
Any luck?
ozgaryAuthor Commented:
Autocad is running on this machine and so have accepted btpringle's answer.

Thanks all.
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