Windows Err Msg: An Old Version of UNIDRV.DLL Is Installed...

Last reviewed: May 5, 1995
Article ID: Q88841

The information in this article applies to:

Microsoft Windows operating system versions 3.1, 3.11

SYMPTOMS

When you choose the Printers icon from the Windows 3.1 Control Panel, and then choose the Setup button, Windows may display the following message:

   An old version of UNIDRV.DLL is installed on your system. Your
   printer requires a newer version. Install the updated UNIDRV.DLL
   file into your Windows SYSTEM directory.

When you choose OK to dismiss the message, Windows displays the following:

                         Control Panel
   Not enough memory available for this task. Quit one or
   more applications to increase available memory, and then
   try again.

NOTE: This second message does not accurately describe the problem; ignore this message.

CAUSE

As the first error message indicates, this problem occurs when a printer driver does not match the version of UNIDRV.DLL currently installed. This typically occurs when you attempt to manually copy an updated printer driver file into the Windows SYSTEM or Windows directory, without actually updating the UNIDRV.DLL and driver file through Control Panel.

RESOLUTION

To correct the problem:

Reinstall the printer driver through Control Panel:
a. Choose the Printers icon, and choose the Add button.
b. Select Install Unlisted Or Updated Printer, then choose the
```
      Install button.
```
c. Type the directory path to the OEMSETUP.INF file for the printer
```
      driver and UNIDRV.DLL combination. (This will install the printer
      driver as well as its associated UNIDRV.DLL.
```
```
       - or -
```
Copy the UNIDRV.DLL and UNIDRV.HLP files, which came with the updated printer driver, into your WINDOWS\SYSTEM directory.
If UNIDRV.DLL exists in the C:\WINDOWS directory, remove it. UNIDRV.DLL

should reside in the WINDOWS\SYSTEM directory.

KBCategory: kbprint kbdisplay kberrmsg
KBSubcategory: win31 windrv
Additional reference words: 3.10 3.11 cpanel unidrv

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Last reviewed: May 5, 1995
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