Hi, I need to use the DllGetClassObject function in InstallScript so that I can use .NET 5 COM DLL. The C++ syntax for DllGetClassObject function is: HRESULT DllGetClassObject ( REFCLSID rclsid, REFIID riid, LPVOID *ppv ) ; I have declared it as follows:   prototype INT OLE32.DllGetClassObject(POINTER, POINTER, BYREF OBJECT); function VOID CheckDLL()     OBJECT obj;     STRING clsid, iid;     INT nResult; begin     clsid = "B91EDCBD-F1A5-4C79-8FE0-1E42D2D67928";     iid = "9657371B-CDBF-4EE4-A580-4B038E0D6E02";     set obj = NOTHING;     nResult = -1;     nResult = DllGetClassObject(&clsid, &iid, obj); end; The nResult is returning -2147467262 and obj is null. I am not sure about the declaration and usage of this function. Can you please guide me on this?   Many Thanks, Adeel. ... View more

Hi, I have a DLL originally compiled in .NET Framework 4.7.1 which exposed some classes and methods using COM. I used DotNetCoCreateObject to create an instance and it was working fine. However, I have recently migrated it to .NET 5 and not the InstallShield fails to load it with following error: error number: 0x80040707 isrt._dotnetcocreateobject  dll function call crashed   I am using InstallShield 2019 R3.   Can you please help me with this.   Reagrds,   Adeel Aziz. ... View more

Hi I have an install script in which I want to open a file located at %ALLUSERSPROFILE%\MyFolder So I used this code: set oDoc = CreateObject("Microsoft.XMLDOM"); . . . if (oDoc.load("[ALLUSERSPROFILE]\\MyFolder\\TestFile.xml")) then . . . But this is not working. Although I have created the folder %ALLUSERSPROFILE%\MyFolder in Application Data > Files and Folders and that folder creates successfully. I also copy the file TestFile.xml over there and it also shows up after the install. But when the code does not seem to have any effect in the file since I am trying to open it and edit it in %ALLUSERSPROFILE%\MyFolder. I have tried by copying this file in the INSTALLDIR location and open and edit there and that works fine so there does not seem to be a problem with my code. I think I am using the wrong variable in the path which is [ALLUSERSPROFILE]. Can anyone tell me how to I access the %ALLUSERSPROFILE% location in the install script. Many Thanks, Adeel. ... View more