Been programming for too long, but always wanted to understand how to call a COM object from within a win32 c application. So I'm starting here hoping for some guidance. Although I have VS 2008, I would like to do this in Codeblocks. The COM object I want to use is for Sage 100. I currently load the COM object using Lazarus (DELPHI) like so: unit header_boi.pas const boi_so_err = 1; boi_data_path = '\\MM-2012-MAS-DEV\Sage\Sage 100 Advanced ERP\MAS90'; boi_script = 'ProvideX.Script'; boi_session = 'ProvideX.PvxDispatch'; unit boi_api.pas hboi_script := CreateOleObject(boi_script); In C, it is my understanding, I need to use CoCreateInstance?? Is this correct? Problem is, I just don't know. I have lots of books, but would love some guidance. Best in 2021, Good karma promised. Bret

Thank you. Seem to remember something about garbage collection being automatic. The environment looks pretty slick. Should be lots of fun.

Not use to the memory babysitting. Thanks for the explanations.

I thought I checked that. It fixed the problem. Thanks for the help. I sense a series of adjustments going from VB6 to VS 2008 is ahead.

ByRef cured the problem. I was going down fast. thanks In the actual program it is a function. I slimmed down the code for my question. Thanks for the comment though, and help.

I'm moving from VB6 to VS 2008. And need help with a data structure problem. In a Public code module in my VS 2008 project, I defined a structure: Public structure db_connection dim connection_string as string End structure Then defined a variable as the structure type: Public db_con as db_connection When I pass the db_con variable to a sub: sub db_create_cs(dbc as db_connection) dbc.connection_string = "some values" end sub I expected the db_con.connection_string value to equal "some values" after the call. Regards.