Matlab as COM

Hi,

I'm using a Software that allos me to link a Matlab File integrating it
for the simulations. The Help Tool of the Software tells that I've to
execute some comands before running simulation. the exact intructions
are:

"The PATH environment variable should include the bin directory under the
MATLAB root directory. This example shows how PATH can be set: 

set PATH=<matlabroot>\bin\win32;%PATH% 

Typically, PATH is set by the MATLAB installer which also registers the
COM components in the Windows registry. 

To manually register COM components run 

matlab /regserver "

I've tried to execute this comands but the system tell me that I don't
have permissions to do that. My system account is an administrator
account, so I have all permissions. I was thinking that is possible that
it's happening because of Windows Vista configuration but I have no idea.
Could someone help me?? If I don't find a solution I won't be able to test
my final project.

Thanks! Best regards