Thanks for your quick reply and the possible solution. I am not able to search the key in the registry since registry editing is disabled by the Administrator. Does this affect the installation of the WinSCPNet.dll? If this is the reason, I would ask the Adminstrator install the dll for me.
You do not need Administrator access to install the assembly.
Not sure what you mean by "registry editing is disabled". You do not need registry editing to search registry. Maybe you mean that you cannot run
You can search the registry using PowerShell for example