Aparashar wrote: HI, Since the API lc_hosid provided with argument as "DISK_SERIAL_NUM" has been conventionally providing me with the (VSN) or say hard disk serial number. So, it would be interesting to know the environment in which you can observe this error. What's the FNP API version? Also what's the environment (OS, VM/physical), if possible can you share the snippet of code ran which provides the similar outputs on 2 different systems? Regards, Abhay Did you read my response? ... View more

Hi Abhay, Thanks for your response. We are using FNP 11.6. Both computers are running a 64-bit version of Windows 7, physical not VM, not BootRoom system. The hostid is 200879 for 2 different physical hard disks (attached files) Below is the code we are using: private XmlResult GenerateMachineId() { var result = new XmlResult(); try { if (!Initialized || !JobCreated) Initialize(); IntPtr machineId = Marshal.AllocHGlobal(4096); var returnEnum = (ResultEnum)Features.lc_hostid ( _jobHandle, FlexConstants.HostidDiskSernum, machineId ); result.success = returnEnum.Equals(ResultEnum.Success); if (!result.success) { result.foreignData = GetForeignData(returnEnum); } else { var xmlData = new StringBuilder(" "); foreach (string mId in Marshal.PtrToStringAnsi(machineId).Split(' ')) xmlData.Append(" " + mId.Replace("\"", "") + " "); xmlData.Append(" "); var xmlDoc = new XmlDocument(); xmlDoc.LoadXml(xmlData.ToString()); result.result = xmlDoc; } } catch (Exception ex) { result.success = false; result.error = -1; result.errorMessage = ex.Message; } return result; } Aparashar wrote: HI, Since the API lc_hosid provided with argument as "DISK_SERIAL_NUM" has been conventionally providing me with the (VSN) or say hard disk serial number. So, it would be interesting to know the environment in which you can observe this error. What's the FNP API version? Also what's the environment (OS, VM/physical), if possible can you share the snippet of code ran which provides the similar outputs on 2 different systems? Regards, Abhay ... View more