I'm trying to create a custom DLL that sets an installer property that
the user can then modify, so I tried starting with a simple example:
extern "C" UINT __stdcall TestFn(MSIHANDLE hInstall)
{
MsiSetProperty(hInstall,TEXT("AGENTID"),TEXT("AgentID from
DLL"));
return ERROR_SUCCESS;
}
I can compile/link the DLL just fine, and then I refer to it in my Wix
source like so:
<Binary Id="TestCA" SourceFile="..\$bin\CustomActionDLL.dll" />
<CustomAction Id="TestCustom" BinaryKey="TestCA" DllEntry="TestFn"
Return="check" Execute="immediate" />
<InstallExecuteSequence>
<RemoveExistingProducts After='InstallFinalize' />
<Custom Action="TestCustom" After="ValidateProductID"/>
</InstallExecuteSequence>
When I run the installer though, the property doesn't seem to be set by
the action, and if I check the trace, nothing in the log seems to even
indicate that the custom action ran. Is there something else that I
need to do to get a custom DLL to be called?
Thanks,
Chris
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