VB6 COM Guid Regeneration during Build

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I have a mass of dlls and ocxs built in VB6, each time I rebuild these projects all the guids representing the objects are changed. I build using VB6.exe /make.

This causes me a lot of problems with some .net code that uses these components, i.e. if I build the vb6 I have to regenerate the .net interop dlls to reflect the new GUIDs

So my question is: Is there a way to Fix the GUIDs so they never change no matter how many times the vb6 projects are rebuilt?

P.s. All the VB6 projects have binary compatibility on.

Posted 12-Sep-11 1:18am

ARopo

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Prerak Patel · Accepted Answer · 2011-09-12T01:23:00

Solution 1

Set Binary Compatibility in Component tab of project properties.
http://blogs.msdn.com/b/adam_nathan/archive/2003/10/19/56779.aspx[^]

Posted 12-Sep-11 1:23am

Prerak Patel

Updated 12-Sep-11 1:24am

v2

Comments

Mehdi Gholam 12-Sep-11 7:31am

HeHe, just posted the same. 5!

Prerak Patel 12-Sep-11 7:49am

Thanks

ARopo 12-Sep-11 9:09am

Thanks, I did have binary compatability on, but still got new guids. However your answer led me to look at it in more detail and I discovered that the binary compatable dll referrenced had a different type lib version to the dll I was buildinf and hense generated new guids. I updated the dll reference and hey presto consistant guids.

Prerak Patel 12-Sep-11 23:19pm

You are welcome.

Mehdi Gholam · Accepted Answer · 2011-09-12T01:30:00

Solution 2

You can tell VB6 to reuse GUID's by changing the compatbility setting of the project to from "No Compatbility" to "Binary Compatibility". You can find these settings under Project->Your-Project Properties. The compatibility setting is on the Component tab of the Project Properties window.

Posted 12-Sep-11 1:30am

Mehdi Gholam

Comments

ARopo 12-Sep-11 9:09am

Thanks, I did have binary compatability on, but still got new guids. However your answer led me to look at it in more detail and I discovered that the binary compatable dll referrenced had a different type lib version to the dll I was buildinf and hense generated new guids. I updated the dll reference and hey presto consistant guids.

Mehdi Gholam 12-Sep-11 9:20am

Yep Hee!