I'm having problems importing a type library into Delphi 2010 on a Windows 7 machine.

I go to Component->Import Component->Import Type Library and when I try to add the dll I get the message 'Error accessing OLE registry.'. I don't get this problem with Windows XP.

Try to start your Delphi with administrator rights (right click on icon, properties/compatibility/run as admin)...

Well, I've tried that first, but it didn't work.

I did solve the problem though, running D2010 in compatibility mode for WinXP.

The problem now (now that I got D2010 to work), is that D2010 is way too slow on Win7, so I'm back on WinXP.

I checked where the slowness comes from:
any line of code like x:=TX.create is extrememly slow.

My program is quiet large (+/- 1 million lines of code). I don't know if this is the reason, but I would appreciate if someone lets me know if you had the same problem, and how (if) you fixed it.