How to resolve the error 0x80070005 - The module "SFTComServer.dll" was loaded but the call to DllRegisterServer failed with error code 0x80070005.
If you are running under windows 7, the reason is most probably the reason is "Access Denied".
You need run the regsvr32.exe as an administrator to register the DLL. Right click the MS Dos Prompt and run as administrator and then type "regsvr32.exe <yourdll.dll>". It would register successfully.