missing programs from add/remove programs windows 2000 sp4

programs that are installed on the system and are available in the programs list are not showing up in the add/remove programs list.  having a particular issue with blackberry enterprise server not showing up and its causing problems when trying to install service packs and upgrade.
jakgumboAsked:
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b0lsc0ttIT ManagerCommented:
jakgumbo,

The usual "fix" for that type of thing is to reinstall the software.  There are somethings that can mess up the list or cause items to be removed.  Depending on how it is installed it might not even make an entry but I doubt that is the case with this program.  Is it an option to reinstall the program?

Let me know if you have any questions or need more information.

b0lsc0tt
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jakgumboAuthor Commented:
re-installing blackberry enterprise server is not an option.
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
"Reinstall" should not be necessary (meaing uninstall and install again). Most software installers (and in particular  MSI packages) allow for a repair install, which does no harm, and reimplants all installation entries according to last setup options chosen on installation.
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Windows 2000

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