Did you check whether you have all the dependencies for your COM dll on the client's machine. Also, if possible try doing the registration through some installer (like installshield). I had a similar problem, when I had previous versions of the same COM Dll on the user's machine, it went fine through a installer. Cheers, Kannan

There is no conversion for CString to a non-const string. Reading the help, it looks like you need to use the T2CA macro.

Thanks for the replies. Anyway, got the path of the browser using API FindExecutable()passing the path of a .html/.htm file. thanks & regards Vikram

Have you read Visual SourceSafe 6.0 Automation in MSDN? It's a huge article and covers much about the topic I guess.