Hello TWT,
I have found the problem, the AddinInstaller registers the package with a wrong version number. Can you please change the version in the registry by hand or generate one of the two regfiles and execute them:
Change the package registry key by hand:
Regfile content for 32 bit machines:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\8.0\Packages\{d4f5086c-54b9-4b07-bd22-af72d5b9228f}]
@="Telerik.CommonPackage.Telerik_CommonPackagePackage, Telerik.CommonPackage, Version=1.0.5.0, Culture=neutral, PublicKeyToken=d63abc9583eb6f32"
Regfile content for 64 bit machines:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\8.0\Packages\{d4f5086c-54b9-4b07-bd22-af72d5b9228f}]
@="Telerik.CommonPackage.Telerik_CommonPackagePackage, Telerik.CommonPackage, Version=1.0.5.0, Culture=neutral, PublicKeyToken=d63abc9583eb6f32"
Sincerely yours,
Jan Blessenohl
the Telerik team