PRB: "VFP300.ESL: Error Code=0" Error Occurs When Running .EXE

• Microsoft Visual FoxPro for Windows, version 3.0

SYMPTOMS

When you run a distributable Visual FoxPro .EXE file, this error occurs:

   VFP300.ESL: Error Code=0

CAUSE

The Windows swap file is too small or the machine has 8 MB of RAM. NOTE: This error message occurs only on 16-bit operating systems such as Windows version 3.1.

WORKAROUND

If your machine has at least 8 MB of RAM, increase the Windows virtual memory settings. If it has 8 MB of RAM, consider adding more RAM to your machine.

STATUS

Microsoft is researching this behavior and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

When you install Microsoft Visual FoxPro on 16-bit operating systems (such as Windows version 3.1 and Windows for Workgroups version 3.11), Visual FoxPro installs the Win32s subsystem. Win32s requires a minimum swap file size of 10 megabytes. Visual FoxPro distributable .EXE files have the same system requirements as Visual FoxPro.

To increase virtual memory:

1. Open the Windows Control Panel, and select the 386 Enhanced icon.

2. Click the Virtual Memory button.

3. Click the Change button.

4. Recommended Swap File settings for Visual FoxPro are swap file of at least 10,000K. This is documented in the Visual FoxPro Installation Guide and Master Index page 2. Permanent swap files require contiguous space, a utility such as DEFRAG.EXE, that ships with MS-DOS version 6.x may be used to defragment the drive and offer larger permanent swap file sizes.

Steps to Reproduce Problem

1. Create a Visual FoxPro distributable .EXE file.

2. If necessary, run the Setup Wizard to create distribution disks for the application.

3. Install the application on a 16-bit Windows platform such as Windows version 3.1.

4. Change the virtual memory settings on the computer so that a swap file of 512K is created.

5. After restarting Windows, attempt to execute the distributable .EXE file. At this point, the error occurs.