Fredequently Asked Questions ARCNET & Microsoft Windows

When using the PCM20 under Windows 98 the operating system may locate this device at a location that is not acceptable to your driver or appplicatoin. This includes programs such as PackView, FactoryFloor, etc. The enabler driver, available here, will place the I/O base address of the PCM20 between 240 and 3F0 (hex).

To use this enabler driver, the PCM20 should be installed using the enabler disk provided with the product. Then remove the PCM20 from your PC and replace the pcm20.vxd file on your system with the new one. When you reinsert your PCM20, its base I/O address should be between 240 and 3F0 (hex).

You may also need to set the node ID for your ARCNET device. This can be accomplished using the program setnode.exe which is included with on your PCM20 enabler disk. It is also downloaded here.

Windows provides an NDIS driver for ARCNET, listed as "Arcnet/TCNS". This driver has been tested and will work in the NT environment.

When introducing Windows NT SP6, Microsoft broke the NDIS support for ARCNET. By the time the error was recognized, Microsoft elected not to fix it because the system had been deemed obsolete. Thus, you will NOT be able to use NDIS under SP6. We suggest you revert to SP5 (which works just fine) — or use a packet driver (if SP6 is absolutely required).

The PCM20 Windows 95 enabler is to be used with Windows 95 machines. If the user shells to DOS and runs a DOS application under Windows 95, the Windows 95 enabler should work. Actually, that is the main purpose of the Windows 95 enabler. It was written to allow people who have legacy (DOS) programs that were written for the PCX20 the ability to use our PCM20 and their application under Windows 95. Windows 95 applications can also communicate with the PCM20 after using the Windows 95 enabler. The card must have the Windows 95 CIS in order to use the Windows 95 enabler. The first time the user inserts the PCM20 with the 95 CIS, Windows 95 will prompt them for a driver. If the card does not have the 95 CIS, Windows 95 will not prompt them for a driver.

People who have DOS (Windows 95 is not installed) or Windows 3.X computers will need to use our pcm20.exe DOS enabler. The user will also need to install a "card and socket services" driver. In the past we used a product from SystemSoft. As these types of notebooks are now rare, some customers are now finding it difficult to locate card and socket services.

There is no need under Windows 95 to install card and socket services — even if the program is running in a DOS window under Windows 95.