Error 1402: Could not open key UNKNOWN\SliderCtrl.SlideCtrlProxy\CLSID

[JulieC]

I have two users.  User A wrote an application using LabVIEW 7.1, including an installer, and gave said application and installer to User B.  User B has 8.0 and 8.1 LabVIEW RTE's installed properly.  When trying to run the application installer, or just the 7.1 RTE installer alone, the following error occurs every time:

Error 1402.  Could not open key:

UNKNOWN\SlideCtrl.SlideCtrlProxy\CLSID

I took the registry info from my machine (had 7.1 installed on it at one time; currently has 8.2 and 8.5), exported everything with "SlideCtrl" in it, imported those into User B's registry, double checked the permission in the appropriate places, re-ran ... same problem.   Help?

[JulieC]

I found the answer on my own, documenting for the next poor soul ... this was under WinXP

* Go into regedt32

* Right-click on HKCR and select "Permissions" -OR- Click on HKCR and choose Edit->Permissions

* Add the current user and set permissions for Full Control and Read.

It is NOT sufficient to give "Everyone" Full Control and Read, it needs that user id.  Brilliant ... current user is not part of "Everyone".