Missing registry keys in Lotus Notes

Hello everyone! Please help me out with my problem.
When I try to apply an attach pack (FP) or a cumulative client Hotfix (CCH) to Lotus Notes on USB, I get the following error:

Error
The Lotus Notes registry key does not specify the correct location of Lotus Notes.
Please check HKEY_LOCAL_MACHINESoftwareLotusNotesPath8.0
I think that the installer is missing some registry keys, and it does not identify where to install the Hotfix. This assumption may be logical, because Nomad does not generate any entry in the registry. The only technique I know to install attachments on Lotus Notes on USB is to temporarily make the necessary registry keys. Unfortunately, the values that are provided in the error are wrong, so the registry keys have to be generated using the following values:
HKEY_LOCAL_MACHINESOFTWARELotusNotes
DataPath=<Path to Lotus Notes Data Directory>
Path=<Path to Lotus Notes Program Directory>
Are there any other solutions to this problem?
I hope that the experts will be able to help me with this one.
Thanks a lot!
