Registring Arc Objects "TLB" or "DLL" files on Shared Network Drive

We are Trying to access the "TLB" or "DLL" files on Shared Network Drive , the file is accessable , but while loading the TLB file on ArcMap , it is showing as "No new items to add.", even though TLB files are having tools.

Please Find the below image for reference.
Attachment 19887


Can anyone of you give us the details of registring the files on the Shared drive to make it accessable ?


Note : The TLB files is developed using ArcObjects 10.0 with .Net Framework 4.0.

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