System.Management.ManagementClass.GetInstances() throws exception

Asked Sep 28 '11 at 08:24

Active Nov 22 '11 at 15:40

Viewed 1,273 times

On different machines, we see different exceptions.

One machine reports

System.Runtime.InteropServices.COMException (The RPC server is unavailable. (Exception from HRESULT: 0x800706BA))

Another reports

System.BadImageFormatException ( An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B))

Yet another reports

System.InvalidCastException (Specified cast is not valid.)

What causes this and what's the correct fix?

edited Nov 22 '11 at 15:40

tm1

asked Sep 28 '11 at 08:24

sjlewis

the second error you show is probably because of x86 / x64 exe format. – Davide Piras Sep 28 '11 at 08:26
In machine with first error try to turn off firewall. If it helps then try to add exception to 135 port. – Renatas M. Sep 28 '11 at 08:36
@DavidePiras my exe is always in x86 format. – sjlewis Sep 28 '11 at 08:43
and all machines with x86 os? – Renatas M. Sep 28 '11 at 09:10
not all client machines are x86 of course. afaik, x86 exe should work on x64 machines. – sjlewis Sep 28 '11 at 14:03
I've witnessed the third InvalidCastException in the wild. Internally it seems to be stemming from an internal method System.Management.ManagementScope.InitializeGuts which calls ThrowExceptionForHR on some exceptional condition. – jpierson May 08 '13 at 22:46

0 Answers0