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ShareMouse v3 - Manual


ShareMouse allows you to control any Mac or Windows PC with the mouse/keyboard of any other computer.

To control a specific computer, move the mouse into the direction of the corresponding display.

Once the mouse pointer reaches the border of a monitor, it jumps to the neighboring monitor and Sharemouse steps in to control the remote computer.

Each computer can control each other computer in any direction. There is no static "master" and "slave" role.

ShareMouse uses the local network to transmit mouse coordinates and keyboard input. Data is secured by optional AES encryption.

You can also drag & drop files between Mac and Windows computers to easily exchange data without tedious network configuration.

Sharemouse can also sync the clipboard between computers.

The monitor manager allows you to visually adjust monitor positions to achieve seamless mouse transitions.

When you move a computer between different work places, ShareMouse creates profiles for each work place and automatically switches the monitor layout correspondingly.

Displays of inactive computers can be optionally dimmed. Arrow trails help finding the mouse cursor in large monitor arrays.

Advanced options prevent accidental monitor switching when using the mouse near the edges of a monitor.

Software Installation

ShareMouse must run on all computers you wish to control.

ShareMouse can either be installed with the setup file or alternatively be executed as a portable software from an USB memory device.

Program installation

Mac OSX installation - Step-by-step video tutorial

  1. Download the installation file.
  2. Double-click the setup program and follow the on-screen instructions to install ShareMouse.
  3. Perform the installation on all computers.
  4. Proceed with section "Getting Started…"

Multiple ShareMouse workplace installations in a shared network can be isolated from each other by applying a password protection.

Running ShareMouse as a service

On Windows computers, ShareMouse can optionally run as a Windows service if you check the option UAC support during installation.

Benefits of running ShareMouse as a service

ShareMouse appends "(service)" to the program name if it is running as a service.

Re-install ShareMouse and uncheck the option "UAC Support" if you do not wish to launch ShareMouse as a service.

ShareMouse cannot be run as a service in portable mode as it would require an installation on the guest computer.

The Windows value "Disable User Account Control(UAC) For Administrators Only" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System] "ConsentPromptBehaviorAdmin"=dword:00000000 allows to remote control UAC dialogs without running ShareMouse as a service. However, this is not recommended as it may compromize system security.

Apple users, heads up!

ShareMouse must be configured in Apple macOS system settings:

Video instructions

In Mac OSX 10.10 ("Yosemite") and macOS 10.11 ("Sierra"), this setting is available in System Preferences » Security & Privacy » Privacy.

In Mac OSX 10.9 ("Mavericks"), this setting is available in System Preferences » Security » Privacy » Accessibility.

Make sure that ShareMouse is check-marked in this list.

Important: If you updated an existing ShareMouse installation, you must confirm your approval by unchecking and checking ShareMouse again.

Portable Use

If you do not have required credentials to install ShareMouse on a computer, you can alternatively run it from an USB memory device:

  1. Download the ShareMouse Portable Edition ZIP file.
  2. Extract the contents of the ZIP archive file into any folder of the USB device.
  3. Execute the program on the USB device by double-clicking the program file ShareMouse.exe.
ShareMouse switches into "Portable Mode" in following cases:
ShareMouse does not write any files onto a guest computer in portable mode.
  • Shutdown the program before removing the USB stick as ShareMouse may lose any setting changes otherwise.
  • ShareMouse doesn't allow you to log onto remote Windows PCs or remote control of UAC secured desktops in portable mode.

Getting Started

  1. Launch ShareMouse on all computers.
  2. Connect all participating computers to the same local network. Grant ShareMouse permission to pass the firewall.
  3. If ShareMouse finds other installations on the network, a small 'radio wave' symbol is added to the task tray icon:

Perfect! If you see this icon on all computers, ShareMouse is ready to use.

If the programs cannot find each other on the network, proceed with chapter "Trouble Shooting".

Remote control a computer

To start controlling another computer…

ShareMouse determines the monitor position of the remote computer automatically:

Remote controlled computer located on the right

If the mouse cursor is moved beyond the righthand side monitor border, ShareMouse will assume the remote PC being located right of the controlling PC.

This works in either direction and also from top to bottom (or vice versa).

If the monitor position is ambiguous, IDs from A-Z are shown on each monitor, allowing you to select the desired monitor by pressing the corresponding letter:

Monitor identification

The mouse cursor magically jumps to the remote monitor and optionally dims all other unused monitors.

You can now control programs on the remote computer with the mouse and keyboard of the controlling PC.

You can also drag & drop files or transfer the clipboard between computers.

A tray notification appears the first time you enter the remote desktop. Click this notification to open the monitor manager which allows you to fine-tune monitor position or slight offsets.

Move back the mouse to the controlling PC or press the panic hotkey to cancel the remote control.

Check out the Troubleshooter in case of problems.

Monitor Manager

Video Tutorial

Right-click the ShareMouse tray icon and select Monitor Manager from the popup menu to open the ShareMouse Monitor Manager:

ShareMouse tray icon menu

To get quick access to the Monitor Manager, ALT-click the task tray icon.

The Monitor Manager visualizes the monitor positions of all connected computers:


Click and drag the monitor symbols to match the layout with the monitor positions on your desk.

Fine-tune slight offsets to achieve seamless mouse transitions between monitors.

All Monitors of each computer must be positioned directly next to each other without gaps or overlaps. You must not interweave monitors of different computers.

ShareMouse treats multiple monitors connected to one computer as a single entity. The relative position of monitors in such cluster must be configured in the Multi Display Properties of the operating system of that computer.

The local monitor is indicated by a thicker border.

Hover monitor symbols for additional information.

Monitor Layout Profiles

If a computer is used in different work places, Sharemouse automatically creates a separate monitor layout profile of each work place.

If you move a computer from one location to another, ShareMouse automatically switches to the monitor layout of the current work place without manual configuration.

Example: If you have a laptop, that you use at home (with a Mac on the right and another Windows PC on the left) and at work (with three Windows PCs on the right), ShareMouse will automatically switches configuration to the corresponding setup.

Data Transfer

ShareMouse allows you to transfer files between computers by syncing the clipboard or by dragging files from one to another computer.

Drag & Drop files between computers

ShareMouse enables you to exchange text, bitmaps and files in a very intuitive way:

Just drag one or multiple files or file folders to the monitor of the desired target computer:

Clipboard synchronization

ShareMouse automatically transmits those file(s) and folder(s) to the remote computer.

Clipboard Synchronization

ShareMouse can copy & paste the clipboard between multiple computers:

  1. Copy anything into the clipboard on one computer, e.g. with the system hotkey CTRL-C.
  2. Move the mouse to the monitor of the desired target computer.
  3. Insert the clipboard contents by pressing the remote paste hotkey CTRL-V on the target computer.

Make sure to enable clipboard synchronization in the program settings.

You must use the remote paste hotkey instead clipboard commands in the menu bar.

Video tutorial

The remote paste hotkey can be customized in the program settings, allowing you to select whether to paste local or clipboard contents.

The transfer speed depends on the network speed. Wireless LAN is slower than cable-based Ethernet network connections. A progress bar is showing for larger clipboard transmissions.

Apple Mac OSX can receive Windows program files but cannot execute Windows programs.

Check the trouble-shooting section if you experience problems with clipboard synchronization.

Program Settings

Right-click the ShareMouse tray icon and select Settings from the popup menu to configure ShareMouse:

ShareMouse tray icon menu

To get quick access to settings, ALT-click the task tray icon.

Monitor Switching

Video tutorial

The following options simplify navigation in large monitor setups:

Block unwanted Switching

The mouse cursor can seamlessly move between monitors and computers by design. However, in some cases, you may want to restrict the mouse cursor to a specific computer.

Sharemouse Pro Edition offers several options to prevent such unwanted mouse transitions between computers:

To temporarily disable ShareMouse, click the task tray icon while holding the CTRL-key. Repeat this action to re-activate ShareMouse. On Macs, press the CMD-key instead.

QuickJump Hotkey

The customizable QuickJump hotkey moves the mouse pointer instantly to a specific monitor without the need to move the mouse all the way across large monitor setups.

While you can use different hotkeys on each computer, we recommend to use the same hotkey as it allows you toggling between monitors with the same hotkey.

How to use the QuickJump hotkey:
  1. To jump to another monitor, press the QuickJump hotkey.
  2. If the setup consists of two monitors, the mouse cursor jumps to that monitor.

    If more than two monitors are involved, a letter from A to Z are shown on each monitor.
  3. Press the letter of the corresponding monitor on the keyboard.

The mouse cursor jumps to the selected monitor and you can remote control the corresponding computer.

The QuickJump monitor selection is cancelled, if you touch the mouse of the remote controlled computer or if you press the Panic hotkey ESC instead.

The mouse cursor is centered on the current monitor whenever the QuickJump hotkey is pressed. This allows you to 'ab'use the QuickJump hotkey to 'initialize' the mouse cursor position in case you visually lost the mouse cursor, for example in large monitor setups.

Data Exchange

In this section, you can enable the file drag & drop and clipboard synchronization feature and configure the hotkey to paste the contents of a remote computer's clipboard.

We recommend to use the hotkey CTRL-SHIFT-V. This allows you to decide case-by-case whether to paste the local computers clipboard contents (with the system hotkey CTRL-V) or to paste the remote clipboard contents by adding the SHIFT-key.

Network Configuration

Password Protection

Video Tutorial

By default, ShareMouse automatically adds any other ShareMouse installation in a local network to a workplace setup.

To group computers of multiple workplaces in a shared network, apply the same password to all ShareMouse installations of one each group of computers:

  1. Open the ShareMouse "Settings" and switch to section "Network",
  2. Enable the password option and enter a password.
  3. Repeat above steps on all computers you wish to group.

Only clients with the same password can connect to that group. Clients without a password are ignored by password-protected clients.


ShareMouse can encrypt network data such as keyboard input, mouse coordinates, clipboard synchronization and file transmission data with AES encryption (see Wikipedia):

  1. Open the ShareMouse "Settings" and switch to section "Network",
  2. Enable the password option and enter a password.
  3. Enable encryption.

Repeat above steps on all connected computers.

Software Update Check

Video tutorial

We strongly recommend to keep the program up-to-date with the built-in internet update check.

To check for updates on demand, connect your computer to the internet, click the system tray icon of ShareMouse and select Settings » Network » Online Updates » Check for Updates.

You can configure the update check to only notify you about critical, minor or experimental updates:

Setting Description

Disables automatic update check.

Not recommended as you will not be informed about important bug fixes!

Informs about important updates that may fix critical bugs.

Recommended for companies with a conservative update policy.

Choose this setting if you want to have the very latest version, including minor improvements

Recommended for personal users.

Use only if you expect a customization provided by us or if we instructed you to configure this option for technical support purposes.

Experimental updates have no use or benefit for normal users.

Informs about availability of beta versions of a major new ShareMouse release.

ShareMouse can only run the update function if the user is logged in with administrative privileges.

If you do not have an internet connection on any computer at all, you can also download the installation file from any computer that has internet access and copy the installation file to the PCs for manual installation.

Mac users, heads up!

You must confirm authorization of ShareMouse in OSX with every update: Uncheck the existing ShareMouse item and checkmark it again under System Preferences » Security » Privacy » Accessibility.

Connection Settings

All ShareMouse programs find each other through UDP port 1046.

Change this port in the rare case if the default port is occupied by another 3rd party application.

ShareMouse additionally uses TCP port for clipboard synchronization and drag & drop file transfers. ShareMouse automatically scans the first free TCP port starting at TCP port 6555.

  • Make sure, that all ShareMouse programs can pass the firewall on those ports in the local network.
  • All connected clients must use the same UDP(!) port. TCP ports can be different.
  • If you change any port, you must update firewall configuration on all computers.

If you encounter connection problems, please check the Network Trouble Shooting section.

Client Management

ShareMouse clients find each other automatically if option "Auto-Search" is enabled.

If you want ShareMouse to connect to a specific network adapter of another computer, you can add ShareMouse clients by entering the IP address of the desired network adapter:

  1. Enter the IP address of the preferred network adapter of each client.
  2. Enter the TCP port which is configured under Settings » Network (default is TCP 6555).
  3. Click the Plus symbol to add the clients.
  4. ShareMouse shows a list of computer names of all found clients.

An antenna icon is shown for all connected clients.


Panic Hotkey

The Panic hotkey ESC (on the upper left side of your keyboard) cancels any active remote control, e.g., in the rare case of any undefined system state or if you visually "lost" the mouse cursor in large monitor setups.

To allow sending the ESC key to any remote computer, you can customize, how many times ESC must be pressed to recognize your panic.

Example: If you configure two panic key repetitions, the first ESC press would be sent to the remote computer and the second ESC press would trigger panic and cancels the remote control.


On Windows-PCs, you can configure a hotkey on the local computer that is interpreted as the infamous CTRL-ALT-DEL keyboard shortcut on the remote computer.

The hotkey must be different from CTRL-ALT-DEL as this system hotkey is always processed by Windows itself on the local computer.

This feature requires a Pro Edition license and a Sharemouse installation with the Windows service on the remote computer.

Monitor Dimming

Video tutorial

ShareMouse optionally dims inactive monitors to make it easier identifying the computer you are currently working on.

An arrow trail indicates the mouse travel direction:

Dimmed monitor with arrow

Disable dimming if the feature causes video programs to quit full-screen.

If dimming is disabled, arrow trails are disabled as well.


The scroll speed setting allows you to compensate scroll speed variations, caused by different mouse/trackpad driver settings on a remote computer.


License Registration

A license key is registered on one single computer (of a computer workgroup in following easy steps.

  1. Purchase licenses in our online shop.
  2. You will receive a license key by email.
  3. Copy the entire license key into the clipboard.
  4. Click the ShareMouse program system tray icon and select Register for professional use.
  5. The license key should appear in the input field and will be registered after you click the button Register.
  • You only need to register one single computer per group of computers you wish to link together with ShareMouse.
  • Unregistered computers of a group of computers will automatically get a temporary license upon connection with a registered computer.
  • One separate license is required for each separate group of computers. Only one computer needs to be registered with that license key.

The license key registration is an one-time procedure. An internet connection is required to store the license key association to your hardware on your online license database. Only your license key, program version number, the language and hardware ID is transmitted to us during this procedure.

Please reboot a Mac PC if ShareMouse can't connect to other ShareMouse clients after registration.

If no internet connection is available on any computer, we recommend you to run ShareMouse from an USB stick. You can then insert the USB stick onto any other guest computer that has internet connection and register the license from there. The license will be tied to the USB stick for use with any PC (see also chapter "Use ShareMouse on USB flash drives").

License De-Registration

To apply a new license key (for a maintenance renewal) or if you wish to use the license key for another installation, you can de-register the license key from the current installation:

Click the ShareMouse task tray icon and select About ShareMouse » Remove license.

This operation requires an internet connection in order to delete the license key association in our online database. Only your license key, the version number, the language and hardware ID is transmitted to us during this procedure.

Maintenance renewal

To renew maintenance for an existing registered installation:

  1. De-register the current license key.
  2. Register the new license key.

License status

To review the current license status and maintenance time left, click the ShareMouse task tray icon and select About ShareMouse.

Start with Mac

Video tutorial

If you do not want ShareMouse to automatically start with the computer,  remove the program link from the Windows StartUp folder.

If you installed ShareMouse on Windows with UAC support, the ShareMouse service starts ShareMouse with Windows automatically. If you don't want that, either change the service start properties in the Windows management console, or re-install ShareMouse and disable UAC support to install ShareMouse without using a service.

Program States

ShareMouse indicates its current status by its icon in the lower right of the Windows task tray or if using a Mac, on the upper right of the status bar:

Icon Explanation

Sender icon - Loaded

ShareMouse is loaded and awaiting connection by another client on the network. This is the initial state.

If you cannot establish a connection to any other PC, read chapter "Troubleshooting".

Sender icon - Connected

Perfect! ShareMouse has found another ShareMouse client on the network and indicates with this symbol that it is ready to use.

You can now start remote controlling the other computer (see chapter "Activating remote control").

Sender icon - Active

ShareMouse is currently remote controlling another PC and is sending the cursor position and keyboard to the remote PC.

Windows hides task tray icons by default. Please make sure to enable the ShareMouse task tray icon as it displays important program status information.

Hover the task tray icon for additional status information.

Uninstall ShareMouse

Remove your license key from your current installation before uninstalling the software!

Exit the ShareMouse program and remove ShareMouse with the operating system feature to remove programs (please refer to the OS documentation for more information).

If the Uninstaller tells, that ShareMouse is still running while there is no visible ShareMouse tray icon, press CTRL-SHIFT-ESC to open the task manager, switch to the tab "Processes", click "Show processes from all users", highlight the process 'ShareMouse.exe' and click the 'End Process' button.

If running ShareMouse from an USB stick, simply delete the program folder that holds all ShareMouse program files.

If you forgot to remove a license from an installation, re-install ShareMouse, remove the license and uninstall ShareMouse.


The fastest path to nail down any potential configuration issue is to reset all ShareMouse installations to default settings:

  1. Exit ShareMouse on all computers. We really mean all ShareMouse clients!
  2. Press and keep holding CTRL and ALT and launch ShareMouse on all computers.
  3. Confirm the prompt to delete all settings.
  4. Consider rebooting the Router/Switch.

General Troubleshooting

No cursor on Windows

The Windows OS automatically hides the mouse pointer if no physical pointing device is attached to the computer as the OS assumes running on a touch tablet. Either connect a physical mouse device or activate "mouse keys" in Windows as a workaround (Microsoft help).

Drag & Drop Troubleshooting

Clipboard Sharing Troubleshooting

Performance Troubleshooting

ShareMouse should run as smooth as you can see in our demonstration video as we also use off-the-shelf hardware.

If you experience a sluggish mouse cursor or delayed keyboard input, please try our performance optimization tips:

Use with virtual PCs

If you wish to use ShareMouse within a virtual machine session running on a remote computer, you may need to install ShareMouse within the virtual machine session. Ignore the ShareMouse warning message.

You may need to exit ShareMouse on the remote host PC to avoid interference with the vm session.

Also make sure to use a "bridged network connection" between host computer and the vm session to enable ShareMouse accessing the session.

If using an Apple Mac with the virtualization software "Parallels", issues with modifier keys SHIFT, CTRL and ALT are known. Workaround: In ShareMouse, disable "Simulate modifiers as Flag event" under Settings » Keyboard.

Networking Troubleshooting

Quick help for IT Pros

Network ports TCP 6555 and UDP 1046 must be open for ShareMouse on all computers.

This step-by-step Troubleshooting assists you if you cannot establish a network connection at all:

Verify general network functionality

Ensure that all computers have the TCP/IP protocol installed:

Find out the IP addresses

To continue troubleshooting, you need to know the IP address of the computers. These are the unique IDs under which the PCs can be identified and reached on the network:

Check basic network communication

Now, try to call the opposing computer with the ping command:

Check for port conflicts

In very rare occasions, it may be that the UDP port being used by ShareMouse are already occupied by another application:

Still no joy?

Computer networking can be tricky.

We kindly ask for your understanding, that the low license fee does not include individual computer network consulting services. The complexity of hardware/software configurations makes it impossible for us to provide individual support on network configuration issues. A stable and working network connection is an basic system requirement for ShareMouse.

Please ask your local IT administrator for assistance or check out following websites for help: