[DUG] Com support

[Robert martin]

Hi Conor

No the .tlb is not read only.  No visual studio either. 

We have jut re compiled on the other Dev machine and the exe created 
also fails on the third (non delphi) test machine. 

This is driving me insane.  (the Delphi Bug isn't helping either). 


I have however one more piece of information (and I think this is the 
killer).  We have some COM clients that work.  We have an old EXE (2005) 
that we have discovered still works !  Also we have a dlls that COM in 
to the exe as well, they all still work as well !!!!


Rob Martin
Software Engineer

phone +64 03 377 0495
fax   +64 03 377 0496
web www.chreos.com

Wild Software Ltd



Conor Boyd wrote:
> You're right about not needing to manually register a COM exe, I had
> forgotten that.
>
> As you've probably realised from the error message, Regsvr32 is purely
> for DLLs and OCXs.  However, for the purposes of clarification, as I
> said before you can explicitly register an EXE by adding the /regserver
> param to a command line to the exe (e.g. this may be useful for
> installers).
>
> However, this ramble of mine is not helping with your bigger problem.
>
> I also don't think the Register Type Library menu option in the IDE is
> available for COM exes.
>
> Your "Unable to rename..." error - the .tlb isn't read-only by any
> chance?
>
> Have you got a copy of Visual Studio?  If so, try running OLEView and
> checking whether your COM server seems to be correctly registered, and
> also that it's the correct exe it's pointing to.
>
> Hope that's some help, not sure what else to suggest immediately.
>
> C.
>
> -----Original Message-----
> From: delphi-bounces at delphi.org.nz [mailto:delphi-bounces at delphi.org.nz]
> On Behalf Of Robert martin
>
> Internet back up now - what a nightmare (on top of this nightmare),
> Telecom changed our password and an ex staff member removed our router
> instructions so we had to reset the unit.  Then it just wouldn't
> connect.  Turned out we were cutting and pasting a space in with the
> user name.  Arrrggggghhh  (3hrs down the drain).
>
> In answer to your questions..  The error reported is 'Interface not
> supported'.  This happens when we try to create the class.  As far as I
> know the _Tlb file is being compiled it, it is part of the project. 
>
> We have never needed to manually register the exe (it has always worked
> perfectly at all our sites).  However if I do try to manually register
> it (using regsvr32) I get 'The module  ..... was loaded but the
> entry-point dllRegisterServer was not found. Make sure that ... is a
> valid dll or OCS file and try again.'.
>
> However there is something weirder happening now.  The issue was
> reported bay a client we upgraded.  I tested it on my dev machine which
> replicated the problem.  However another Dev machine here with an older
> copy of files tested fine.  I found my machine was missing the .tlb
> file.  This fixed the 'Type library' missing from the menu but didn't
> fix the problem on my machine. 
>
> I have just found that the exe created by may machine fails on my
> machine but runs on the other dev machine.  If I go back to my old dev
> files (missing the .tlb file) I can no longer access the 'type library' 
> menu but the files compiled still work on the other Dev machine. 
>
> I think during my attempts to fix the situation I have broken something
> else on my machine.  The 'Register type library' option is greyed out on
> my 'type library' screen and when I try and save my project I get....
>
> 'Unable to rename 'C:\.......\Client\ChreosClient.tlb' to
> 'C:\.......\Client\_History\ChreosClient.tlb.~1~' '
>
> There is no 'C:\.......\Client\_History\ChreosClient.tlb.~1~'  file
> (although there are lots of other units).  I can manually copy the file
> and create it as listed above.  However I then get the same error with
> .~2~.  I have had this problem in the past and it went away (I suspect
> with the removal of the .tlb file.  This prevents me saving the project
> and any changes to the _tlb.pas / .tlb files.
>
> Sorry about the long story but this is driving me up the wall !
>
> Myles Penlington wrote:
>   
>> Is the *_TLB.pas compiled into the project? And has the exe been 
>> registered? What errors are reported by COM when attempt to access the
>>     
>
>   
>> COM objects?
>> Myles.
>>     
>
> [snip]
>
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