As I wrote in a topic, I had Typemock Isolator 220.127.116.11 before. Then I tried to install 5.1. When I got error, I tried to remove old installation and install 5.0, but the error appered again.
All these are 32 bit installations. Running All Programs->Typemock->Isolator 5.x->Isolator Configuration leads to error too.
Just now I correct the sitiation. I uninstall Typemock, remove registry key [HKEY_LOCAL_MACHINE\SOFTWARE\TypeMock] and install 5.1 again. Configuration dialog works! It seems, name of company is in capital letters now.
P.S. If you have any questions, please send me e-Mail.