# Agents and Wireshark / WinPCap
> What to expect when you run WinPCap-based tools such as Wireshark alongside the agent on 64-bit computers.
Source: https://docs.capaone.com/performanceguard/installation/install-performanceguard-agents/agents-and-wireshark-winpcap/
Product: PerformanceGuard — a separate CapaSystems product; do not apply this page to any other.
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:
1. Start an elevated command prompt and enter these commands:
```powershell
Net stop pga
```
```powershell
Net stop pgnpf
```
Ignore any errors caused by the Net stop pgnpf command.
:::note[Important]
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.
:::
2. Install WinPCap, or the product that installs WinPCap, for example Wireshark.
3. When ready, enter this command in the elevated command prompt:
```powershell
Net start pga
```
# **Remove WinPCap**
If you need to remove WinPCap from a computer that also runs the PerformanceGuard agent, do the following:
1. Start an elevated command prompt and enter this command:
```powershell
Net stop pga
```
2. Remove WinPCap, or the product that has installed WinPCap, for example Wireshark.
3. When ready, enter this command in the elevated command prompt:
```powershell
Net start pga
```