help with dsf emulator in managed code (have started coding in vb.net already)

I have started coding a mouse emulator that uses dsf(device simulation
framework) but have tryed to code in vb.net but have a bluescreen
error and here is detailed information on it:
ADDITIONAL_DEBUG_TEXT:
Use '!findthebuild' command to search for the target build
information.
If the build information is available, run '!findthebuild -
s ; .reload' to set symbol path and load symbols.

FAULTING_MODULE: 82c08000 nt

DEBUG_FLR_IMAGE_TIMESTAMP: 4b70d82f

EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx
referenced memory at 0x%08lx. The memory could not be %s.

FAULTING_IP:
softehci+f021
9f3af021 ff7618 push dword ptr [esi+18h]

TRAP_FRAME: 9d7678cc -- (.trap 0xffffffff9d7678cc)
ErrCode = 00000000
eax=00000001 ebx=85141f80 ecx=00000000 edx=00000000 esi=00000000
edi=9f3cafc6
eip=9f3af021 esp=9d767940 ebp=9d76797c iopl=0 nv up ei ng nz
na pe nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000
efl=00010286
softehci+0xf021:
9f3af021 ff7618 push dword ptr [esi+18h] ds:
0023:00000018=????????
Resetting default scope

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT

BUGCHECK_STR: 0x8E

CURRENT_IRQL: 0

LAST_CONTROL_TRANSFER: from 9f3c1f01 to 9f3af021

STACK_TEXT:
WARNING: Stack unwind information not available. Following frames may
be wrong.
9d76797c 9f3c1f01 865da9fc ffff0003 00000000 softehci+0xf021
9d7679bc 8962932d 00000000 865da9fc 873b3470 softehci+0x21f01
9d7679d8 89639e3b 85141f80 0000008c 00000004 DSFOleaut32+0x1932d
9d767a6c 9f3bfdfe 851ecd24 85141f80 00000000 DSFOleaut32+0x29e3b
9d767aa4 896175f3 85141f80 00000c95 00000000 softehci+0x1fdfe
9d767b68 896178b1 85141f80 850d9538 858fa000 DSFOleaut32+0x75f3
9d767b84 895d2a88 853db510 858fa008 84c4cc24 DSFOleaut32+0x78b1
9d767ba0 895d15a6 895d6ffa 895d89b8 895d5f4a dsfksvcs+0x35a88
9d767bc4 895a5013 85670d68 85120228 858fa000 dsfksvcs+0x345a6
9d767bfc 82c37012 84c4d388 85670cf8 85670cf8 dsfksvcs+0x8013
9d767c14 82e0ca5d 86715808 85670cf8 85670d68 nt+0x2f012
9d767c34 82e0ee50 84c4d388 86715808 00000000 nt+0x204a5d
9d767cd0 82e15dff 84c4d388 85670cf8 00000000 nt+0x206e50
9d767d04 82c3d85a 0000046c 00000000 00000000 nt+0x20ddff
9d767d34 77c57094 badb0d00 04aed384 00000000 nt+0x3585a
9d767d38 badb0d00 04aed384 00000000 00000000 0x77c57094
9d767d3c 04aed384 00000000 00000000 00000000 0xbadb0d00
9d767d40 00000000 00000000 00000000 00000000 0x4aed384


STACK_COMMAND: kb

FOLLOWUP_IP:
softehci+f021
9f3af021 ff7618 push dword ptr [esi+18h]

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: softehci+f021

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: softehci

IMAGE_NAME: softehci.sys

BUCKET_ID: WRONG_SYMBOLS

Followup: MachineOwner
---------


My goal is to develop a multimouse emulator for my http://kinectmultipoint.codeplex.com
project which is a multimouse version of kinect mouse.

The vbscript works if you wish to look at something that works first
except i need the vbscript to do multiple mouse devices when converted
to vb.net.

The problem is most likely an error in my type declarations but some
of the dsf docs are vague and others good so the documentation is
flaky at best.