I installed Delphi Berlin recently. Didn't worked so I uninstalled it same day. Now my Delphi XE7 stopped working. I get this error when I try to compile anything, and I don't know how to fix it.
Unable to cast COM object of type 'System.__ComObject' to interface type 'Borland.Studio.Interop.IInteropMessageService'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{FF877130-F96F-3885-9A3E-3093A3C1D831}' failed due to the following error: Error loading type library/DLL. (Exception from HRESULT: 0x80029C4A (TYPE_E_CANTLOADLIBRARY))
The error is just like shown above. No source file is mentioned.
I already tried to use the 'fix' provided by Embarcadero but their tool won't work:
C:\Delphi\Delphi XE7\bin>tregsvr -t Borland.Studio.Interop.tlb
Embarcadero Turbo Register Server(32) -- COM Server Registration utility.
Version 1.3 Copyright (c) 1997-2010 Embarcadero Technologies, Inc.
Type library name: C:\Delphi\Delphi XE7\bin\Borland.Studio.Interop.tlb
Type library GUID: {F939BACD-3FD5-437A-833F-BA3535A45966}
Error: Error accessing the OLE registry
FIX (suggested by @rruz): the utility above needs to be run under "Admin" (elevated) permissions. Thanks @RRuz.