Windows 7 (64 bit) Installation issue

Hi,

I have a problem running DraftSight from my Windows 7 notebook.  It aborts during installation when writing the registry values and returns the following error message:

"Error 1935. An error occurred during the installation of assembly component {03329364-ED3E-3EF1-ACB0-C1E9F5282929} HRESULT: 0x800736FD" 

The operating system is Windows 7 Home premium 64 bit.

Has anyboby seen this problem before and found a solution?

many thanks

 John