I created a VB.Net COM+ service that interacts with the indexing
server. In order to create it I had to compile an interop version for
ixsso.dll. It has been working fine for a long time. Recently when I
tried to start it up on our development system for testing, it gave me
the following error:

Could not load type Interop.ixsso.CissoQueryClass from assembly
interop.ixsso

I have tried to move it to other machines, recompile the interop dll,
recompile the .Net COM+ object, successive reboots of all involved
servers and lowering the security to no avail. Can anyone can give me
any insight into this error and\ or a possible solution to the
problem?

Thank You,
Yehuda