The First/Pilot Mouse PS/2 (S34,S35,S42,C43) is a type of mouse manufactured by Logitech. Updating this driver fixes tracking problems, intermittent or no connectivity and can unlock some advanced features of your type of mouse. This version of "BOS_MOUS.EXE" has been downloaded 309 times with a user rating of 4 out of 5 stars, based on 10 reviews. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 1.7 MB.
HID-compliant mouse
IBM ScrollPoint PS/2
Logitech Cordless Desktop PS/2
Logitech Cordless Desktop Serial
Logitech Cordless MouseMan Pro PS/2
Logitech Cordless MouseMan Pro Serial
Logitech Cordless Wheel Mouse PS/2
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows NT3.51, Windows ME, Windows 98SE, Windows 98, Windows 95, Windows 3.1
BOS_MOUS.EXE (1.7 MB)
DriverGuide (DG Staff Member) on 9-Sep-2003
To get the Logitech First/Pilot Mouse PS/2 (S34,S35,S42,C43) driver, click the green download button above. After you complete your download, move on to Step 2.
If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Logitech First/Pilot Mouse PS/2 (S34,S35,S42,C43) into the search box above and then submit. In the results, choose the best match for your PC and operating system.
Tech Tip: If you are having trouble deciding which is the right driver, try the Logitech Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To find the newest driver, you may need to visit the Logitech website. Most major device manufacturers update their drivers regularly.
Installing your newly downloaded driver is a straightforward process. Windows provides a dedicated tool called Device Manager for this purpose. Follow these steps to update your driver:
Access the Quick Access menu by right-clicking the Start button.
From the menu options, choose "Device Manager".
Within Device Manager, identify the device requiring the driver update.
Open the context menu for the device by right-clicking its name.
Select "Update driver" and proceed through the guided installation.
To complete the process, reboot your computer. This ensures the new driver is fully integrated into your system.
Regular driver updates contribute to optimal system performance and hardware compatibility.
Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.
For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| WIN95/LMOUSE.DRV | 87.1 KB | 29 Jul 1998 |
| WIN95/LMOUSE.VXD | 135.1 KB | 29 Jul 1998 |
| WIN95/LMOUSENU.INF | 8.9 KB | 23 Jul 1998 |
| WIN98/LMOUHID.VXD | 11.0 KB | 29 Jul 1998 |
| WIN98/LMOUSENU.INF | 10.3 KB | 27 Jul 1998 |
| WIN98/LMUL.VXD | 5.7 KB | 29 Jul 1998 |
| WINNT/L8042PRT.SYS | 48.2 KB | 29 Jul 1998 |
| WINNT/LKBDENU.INF | 12.5 KB | 27 Jul 1998 |
| WINNT/LKBDFLTR.SYS | 2.3 KB | 29 Jul 1998 |
| WINNT/LMOUFLTR.SYS | 32.6 KB | 29 Jul 1998 |
| WINNT/LMOUSENU.INF | 15.4 KB | 20 Jul 1998 |
| WINNT/LSERMOUS.SYS | 33.5 KB | 29 Jul 1998 |
| LMOUIENU.CN~ | 1.1 KB | 21 May 1998 |
| LMOUSENU.CN~ | 1.2 KB | 21 May 1998 |
| LGBAPPST.CU~ | 179 bytes | 24 Oct 1995 |
| LGBARROW.CU~ | 149 bytes | 24 Oct 1995 |
| LGBHELP.CU~ | 167 bytes | 24 Oct 1995 |
| LGBUP.CU~ | 126 bytes | 24 Oct 1995 |
| LGBWAIT.CU~ | 153 bytes | 24 Oct 1995 |
| LGBZALL.CU~ | 170 bytes | 24 Oct 1995 |
| LGBZNESW.CU~ | 128 bytes | 24 Oct 1995 |
| LGBZNS.CU~ | 131 bytes | 24 Oct 1995 |
| LGBZNWSE.CU~ | 129 bytes | 24 Oct 1995 |
| LGBZWE.CU~ | 115 bytes | 24 Oct 1995 |
| LGEAPPST.CU~ | 222 bytes | 24 Oct 1995 |
| LGEARROW.CU~ | 192 bytes | 24 Oct 1995 |
| LGECROSS.CU~ | 77 bytes | 24 Oct 1995 |
| LGEHELP.CU~ | 209 bytes | 24 Oct 1995 |
| LGEIBEAM.CU~ | 83 bytes | 24 Oct 1995 |
| LGENO.CU~ | 223 bytes | 24 Oct 1995 |
| LGEUP.CU~ | 139 bytes | 24 Oct 1995 |
| LGEWAIT.CU~ | 156 bytes | 24 Oct 1995 |
| LGEZALL.CU~ | 165 bytes | 24 Oct 1995 |
| LGEZNESW.CU~ | 191 bytes | 24 Oct 1995 |
| LGEZNS.CU~ | 155 bytes | 24 Oct 1995 |
| LGEZNWSE.CU~ | 192 bytes | 24 Oct 1995 |
| LGEZWE.CU~ | 149 bytes | 24 Oct 1995 |
| LGLAPPST.CU~ | 171 bytes | 24 Oct 1995 |
| LGLARROW.CU~ | 144 bytes | 24 Oct 1995 |
| LGLHELP.CU~ | 161 bytes | 24 Oct 1995 |
| LMBAPPST.CU~ | 222 bytes | 24 Oct 1995 |
| LMBARROW.CU~ | 185 bytes | 24 Oct 1995 |
| LMBCROSS.CU~ | 75 bytes | 24 Oct 1995 |
| LMBHELP.CU~ | 202 bytes | 24 Oct 1995 |
| LMBIBEAM.CU~ | 79 bytes | 24 Oct 1995 |
| LMBUP.CU~ | 133 bytes | 24 Oct 1995 |
| LMBWAIT.CU~ | 167 bytes | 24 Oct 1995 |
| LMBZALL.CU~ | 187 bytes | 24 Oct 1995 |
| LMBZNESW.CU~ | 172 bytes | 24 Oct 1995 |
| LMBZNS.CU~ | 142 bytes | 24 Oct 1995 |
| LMBZNWSE.CU~ | 177 bytes | 24 Oct 1995 |
| LMBZWE.CU~ | 137 bytes | 24 Oct 1995 |
| BASIC.DL~ | 42.1 KB | 29 Jul 1998 |
| CCMSGHK.DL~ | 27.4 KB | 29 Jul 1998 |
| CCRESENU.DL~ | 12.9 KB | 29 Jul 1998 |
| CCRESGLB.DL~ | 72.5 KB | 29 Jul 1998 |
| CCSTMGLB.DL~ | 25.7 KB | 29 Jul 1998 |
| CCUSTOM.DL~ | 886 bytes | 29 Jul 1998 |
| CMOUSECC.DL~ | 10.6 KB | 29 Jul 1998 |
| COMNCTR.DL~ | 66.5 KB | 29 Jul 1998 |
| DEVICES.DL~ | 28.6 KB | 29 Jul 1998 |
| EVENTEX.DL~ | 170.9 KB | 29 Jul 1998 |
| KBDHOOK.DL~ | 1.0 KB | 27 Mar 1998 |
| LGCORDLS.DL~ | 13.1 KB | 29 Jul 1998 |
| LGTCHPAD.DL~ | 15.1 KB | 29 Jul 1998 |
| LGUICOM.DL~ | 44.8 KB | 29 Jul 1998 |
| LIMW.DL~ | 3.4 KB | 29 Jul 1998 |
| LMOUSE16.DL~ | 2.3 KB | 29 Jul 1998 |
| LMOUSE32.DL~ | 6.1 KB | 29 Jul 1998 |
| LOGILANG.DL~ | 12.8 KB | 29 Jul 1998 |
| MFC30ENU.DL~ | 176.7 KB | 11 Jul 1995 |
| WIENU.DL~ | 4.5 KB | 29 Jul 1998 |
| LOGILG16.DLL | 78.2 KB | 29 Jul 1998 |
| SUX32.DLL | 31.2 KB | 29 Jul 1998 |
| CRDLSWIZ.EX~ | 11.1 KB | 29 Jul 1998 |
| EM_EXEC.EX~ | 17.1 KB | 29 Jul 1998 |
| KBDTRAY.EX~ | 9.7 KB | 29 Jul 1998 |
| WINST.EX~ | 325.6 KB | 29 Jul 1998 |
| CLOAKING.EXE | 65.1 KB | 26 Aug 1996 |
| LGEXPAND.EXE | 14.5 KB | 22 Oct 1996 |
| MOUSE.EXE | 104.6 KB | 24 Jul 1998 |
| MOUSECC.EXE | 33.7 KB | 26 Aug 1996 |
| SETUP.EXE | 115.7 KB | 29 Jul 1998 |
| LMOUSENU.HL~ | 52.6 KB | 3 Jun 1998 |
| CMOUSECC.IN~ | 148 bytes | 20 Jun 1997 |
| MOUSEDRV.IN~ | 727 bytes | 23 Jul 1998 |
| SETUP.INI | 2.0 KB | 29 Jul 1998 |
| SDEV9X.LI~ | 6.4 KB | 15 Jul 1998 |
| SDEVNT.LI~ | 6.8 KB | 23 Jul 1998 |
| SETUP.LI~ | 724 bytes | 29 Jul 1998 |
| SEXIT.LI~ | 1.1 KB | 11 Jun 1998 |
| SLAYOUT.LI~ | 840 bytes | 29 Jul 1998 |
| SLGENU.LI~ | 2.4 KB | 17 Jun 1998 |
| SLGINIT.LI~ | 647 bytes | 29 Jul 1998 |
| SLOG.LI~ | 241 bytes | 10 Oct 1997 |
| SMAIN.LI~ | 2.6 KB | 15 Jul 1998 |
| SVER.LI~ | 69 bytes | 29 Jul 1998 |
| SWIN9X.LI~ | 6.7 KB | 24 Jul 1998 |
| SWINNT.LI~ | 5.5 KB | 24 Jul 1998 |
| ULGENU.LI~ | 1.0 KB | 22 Jul 1998 |
| UNINSTAL.LI~ | 4.2 KB | 2 Jul 1998 |
| MOUSEDRV.TX~ | 14.0 KB | 5 Feb 1998 |
| FCC.TXT | 539 bytes | 7 May 1998 |
| README.TXT | 8.7 KB | 28 Jul 1998 |