I have never ever seen that error before. Nor has anyone else around here. I googled the error, no hits at all... Do you have any other CR ? SAP products installed? E.g.; CR for Enterprise. Dashboards. CR for eclipse. CR Server. Any other versions of C?
One idea; delete the reg keys:
HKEY_LOCAL_MACHINE\SOFTWARE\SAP BusinessObjects\Suite XI 4.0
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\SAP BusinessObjects\Suite XI 4.0
HKEY_CURRENT_USER\Software\SAP BusinessObjects\Suite XI 4.0
While you're at it, delete the folder (and subfolders) C:\Program Files (x86)\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0
Then reinstall.
NOTE: this is assuming you do not have any other products that may use that directory. E.g.; see my 1st paragraph in this reply.
- Ludek