After following the steps from the Manual - ibi™ WebFOCUS® App Studio Installation and Configuration Release 8206 launching App Studio network installer throws the following error:

Error Message:

Required COM interface is not registered: IAS_VC2012_8204M_WFSFILESystem.

FATAL error Application will terminate

Error Detail: Class not registered

Probable cause: Failed installation

App Studio was unable to load an interface and cannot continue

This is most likely caused by a problem with the installation or the removal of essential files from the installation.

Solution:

1. To correct this issue for new installs and upgrades runfocshell.dat, file used by the network editions to register files at the client machines, needs to have the following entries removed:
          COPY:\\share_name\ibi\AppStudio82\srv\wfs\etc\nlscfg.err
          DLLNAME:gfa.dll
          DLLNAME:gfw.dll
2. During upgrades or 8205.14 and higher, files devstdpw.dat and wfscom.xml (if exists) need to be restored from ..\ibi\AppStudio82\backup_files\bin\ to ..\ibi\AppStudio82\bin\