Assembly deployment

Hi,

I have a problem when I deployed my assembly (Win32, exposed to COM 32, called by Excel).

It works on some machine except one. The machines have NET 2 framework and XP pack 3. They are similar and in principle the same structure (same department).

This assembly was deployed by a package msi created in Visual Studio 2500 professional in a separated folder. Then the assembly is not in GAC.

In Excel (VBA), the assembly has exposed its methods via a file TLB.

When I instanciate one class in the assembly, I have the following message:
File or assembly name xxx123, or one of its dependencies, was not found.

I have made searches on the web but il give nothing!

Any one have a idea


Thanks a lot

Vikhong