Hello,
 
I have a problem installing Inventor 2010 sp1.
First of all, i cant find the correct one on autodesk j´homepage so i downloaded from :http://teknigroup.com/.
When the installation is allmost don i get a message:
Install error: dotnetactions.performancecounters: the requested register is not allowed.
When i klock OK i get a new message:
A problem prevented the service pack from being installed. Contact your system administartor. Error code: 1603
 
Is there someone that knows how i can fix this?
 
Best regards.