Solution to the problem that the volume control icon cannot be displayed at startup

It should be because the icon in the notification area of the boot task bar cannot be displayed, but I know more people will search for "the boot volume icon cannot be displayed", so ......

Symptom:
The icons in the notification area of the boot task bar cannot be displayed, but can be displayed after cancellation (most obvious, but most frequently asked). The volume control icon cannot be displayed on the task bar, in the audio and audio device properties, the "display the volume icon in the taskbar" check box is selected, and the symptoms are that the taskbar has been unavailable for a long time.

Solution:
Start-run services. MSC
Find the SSDP Discovery Service, double-click it, stop the service in properties, and select"Disable"
Restart the operating system to see if the problem has been resolved. Please let me know.

I don't know why SSDP Discovery Service is used. I want to ask Microsoft.

Description environment: Windows XP (SP2)

Supplement: 2006.6.24
Today, I encountered a similar problem on someone else's machine, and his SSDP Discovery Service was disabled. I tried to comment on the solution provided by Xu yunling to solve the problem, here, I would like to express my gratitude to him.
Run regedit and find the item: [HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ shellserviceobjectdelayload]
Create a new string array in the key-value column on the right. The key-value data is {35cec8a3-2be6-11d2-8773-92e220524153}

It seems that one of the reasons why the "Notice area icon cannot be displayed on the boot Task Bar" is clear, but what I encountered last time should not be caused by Yahoo Assistant (I never used such a thing). I still have doubts.