Problems with installation

I'm trying to install SW 09/10 on win 7

But when I click on sldim I get the followin message:

Internal Error: Solidworks Installation Manager wants to display an important message to you, but can't find the text (ID #10101, ?)
You may need to reinstall SolidWorks Installation Manager

What do I do?

Thx

SolidworksAdministration