Hi Brain, I am Ranish form India, doing as a programmer. Can I use a .NET generated dll (Regular dll ) directly form Python (Not python .NET) ? I am using calldll module, and getting a message as DLL loading failed (for my dll) But when I tried to load kernal32.dll, its scusses. Why ? [ I called my dll form C++ its working finely ] Do I need to register my dll in system ? Please help me in explain the reason, for this. Thanks for your time. Thanks & Regards P.Ranish The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com