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Error: Component 'tabctl32.ocx' or one of its dependencies not correctly registered

Technote (troubleshooting)


The following error message is displayed when trying to access Scheduler:

A fatal Scheduler error has occured C:\Program Files\Cognos\cer3\bin\User Workspace\Schedule.mdb modMain.StartUI. Component 'tabctl32.ocx' or one of its dependencies not correctly registered: a file is missing or invalid (339) CognosBatcher.ServiceRequest Application-defined or object-defined error

Resolving the problem

This error can mean either that the tabctl32.ocx file needs to be registered by REGSVR32.EXE or that the tabctl32.ocx file is missing from the C:\WinNT\System32 directory and needs to be registered REGSVR32.EXE. To resolve the issue follow these Steps:

  • Run a search for the tabctl32.ocx file. Should be located in the C:\WinNT\System32 folder. If you cannot find it then copy the file from another computer and drop it into the C:\WinNT\System32 directory of the computer that generates the error.
  • Drag and drop the tabctl32.ocx file on REGSVR32.EXE (should be located in C:\WinNT\System32). This registers the file and allows Scheduler to open without error.

Cross reference information
Segment Product Component Platform Version Edition
Business Analytics Cognos Series 7 Scheduler

Historical Number


Document information

More support for: Cognos Series 7

Software version: Impromptu 7.1, Impromptu 7.3, Scheduler 7.0, Scheduler 7.3

Operating system(s): Windows

Reference #: 1349642

Modified date: 12 September 2014