Context Menu Shell Extension problem

[Poggs]

Hi everyone,
I used the pattern for Shell Extensions for Context menu from Dino
Esposito's article. However I implemented it in more than one application
and it seems that those two right click functionalities cannot work
together.
void IContextMenu.InvokeCommand (IntPtr pici)

I put more debugging information and I noticed that the two assemblies are
using a common value. I haved changed their namespaces and guids to be
different but still I am getting the same value.



How do I resolve this.



Aldwin

 

[Poggs]

Another thing that I noticed here is that other context menu are not working
too. An example is the OpenWith menu. Before it displays the different
application where you can open a file but now it displays "Open With" text
inside the Open With context menu.

How is this happening?

 

[Poggs]

Additional Information
I added some debugging information and I noticed that the IDCmdFirst value
is higher than the idCmdLast.
First application generates
[2228] Initializing Shell Extensions
[2228] pidlFolder : 0
[2228] lpdobj : 22245384
[2228] hKeyProgID : 2454
[2228] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[2228] Query Context Menu
[2228] hMenu : 366805703
[2228] iMenu : 0
[2228] icmdFirst : 31092
[2228] idcmdLast : 31226
[2228] uFlags : 131088
[2228] hmnuPopup : 7538337
[2228] m_hDrop : 83582664

Second application generates this

[2228] Initializing Shell Extensions
[2228] pidlFolder : 0
[2228] lpdobj : 22245384
[2228] hKeyProgID : 2454
[2228] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[2228] Query Context Menu
[2228] hMenu : 366805703
[2228] iMenu : 0
[2228] icmdFirst : 62289
[2228] idcmdLast : 31226
[2228] uFlags : 131088
[2228] hmnuPopup : 34145945
[2228] m_hDrop : 1094128

Also noticed that they both have the same uflags..

But both context menu extensions are working fine if only one of them are
installed in the machine.

 

[Poggs]

Issue Fixed....
Problem is the idCMDFirst and idcmdLast values being messed up..

Additional Information
I added some debugging information and I noticed that the IDCmdFirst value
is higher than the idCmdLast.
First application generates
[2228] Initializing Shell Extensions
[2228] pidlFolder : 0
[2228] lpdobj : 22245384
[2228] hKeyProgID : 2454
[2228] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[2228] Query Context Menu
[2228] hMenu : 366805703
[2228] iMenu : 0
[2228] icmdFirst : 31092
[2228] idcmdLast : 31226
[2228] uFlags : 131088
[2228] hmnuPopup : 7538337
[2228] m_hDrop : 83582664

Second application generates this

[2228] Initializing Shell Extensions
[2228] pidlFolder : 0
[2228] lpdobj : 22245384
[2228] hKeyProgID : 2454
[2228] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[2228] Query Context Menu
[2228] hMenu : 366805703
[2228] iMenu : 0
[2228] icmdFirst : 62289
[2228] idcmdLast : 31226
[2228] uFlags : 131088
[2228] hmnuPopup : 34145945
[2228] m_hDrop : 1094128

Also noticed that they both have the same uflags..

But both context menu extensions are working fine if only one of them are
installed in the machine.

Another thing that I noticed here is that other context menu are not
working too. An example is the OpenWith menu. Before it displays the
different application where you can open a file but now it displays "Open
With" text inside the Open With context menu.

How is this happening?