Problem using VB6 Package and Deployment Wizard

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VB

installer

Hello,

I have created the setup/installer for my application using the PDwizard. The installation is working all good (as its expected). For uninstallation, I have used a custom program (created by me) instead of directly calling the st6unst.exe. This program is called from both programs shortcut menu as well as control panel add remove programs option. Only requirement to use a custom uninstaller is to make it password protected and open access solely to system administrators. This program is also calling st6unst.exe but after verifying the password and sysadmin account. The uninstallation also is going good except one thing. It doesn't remove the application entry from add remove programs screen. I checked in the registry and found that my application entry for uninstall is still there inside the path :

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
Uninstall\ST6UNST #1...

It removed only when I manually removed the entry from control panel.
How to do this thing automatically so that the entry from registry for uninstaller will also be removed after the application is uninstalled...

Any help regarding this will be highly appreciated.
Thanks for any info in advance

regards
Shouvik