Files open in Read Only in uVision 3

I just re-installed uVision 3 and then tried to open an old project. The project is about 500 bytes of compiled code. However, it will only open the files in read only mode - there is a yellow key next...
Files open in Read Only in uVision 3

I just re-installed uVision 3 and then tried to open an old project. The project is about 500 bytes of compiled code. However, it will only open the files in read only mode - there is a yellow key next...
I am using Keil uvision 5(for Cortex M55) for simulation. How can I read .pcm file and write a .pcm file in AVH?

I am using Keil uvision 5(for Cortex M55) for simulation. How can I read .pcm file and write a .pcm file in AVH?
How to disable Read Out Protection with uVision and JTAG

Short version. How do I erase the option bytes on an STM10F103ZC using JTAG and Keil uVision IDE? I have tried Flash->Erase but it did not work. Details follow. I have taken an extremely rare prototype...
How to disable Read Out Protection with uVision and JTAG

Short version. How do I erase the option bytes on an STM10F103ZC using JTAG and Keil uVision IDE? I have tried Flash->Erase but it did not work. Details follow. I have taken an extremely rare prototype...