WinPCap is a packet capture library that's often used when you capture live network data. Several packet analysis applications, such as Wireshark, use WinPCap.
If you use such applications together with the PerformanceGuard agent on 64-bit computers, read this information about how to install and remove WinPCap.

Install WinPCap

If you want to run PerformanceGuard agents alongside a product that uses WinPCap (for example Wireshark), and you install WinPCap after you've installed the PerformanceGuard agents, you must install WinPCap in the following way:

Start an elevated command prompt and enter these commands:
```
Net stop pga
```
```
Net stop pgnpf
```
Ignore any errors caused by the Net stop pgnpf command.
What's an elevated command prompt?
It is a command prompt that's able to execute commands with administrative privileges. To get an elevated command prompt, click /Start, type cmd, right-click Command Prompt in the search results, and select Run as administrator.
Install WinPCap, or the product that installs WinPCap, for example Wireshark.
When ready, enter this command in the elevated command prompt:
```
Net start pga
```

Remove WinPCap

If you need to remove WinPCap from a computer that also runs the PerformanceGuard agent, do the following:

Start an elevated command prompt and enter this command:
```
Net stop pga
```
Remove WinPCap, or the product that has installed WinPCap, for example Wireshark.
When ready, enter this command in the elevated command prompt:
```
Net start pga
```

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