Note: The correct way to exit a Forms session is to exit the form (File > Exit, or click Exit), then close the browser. If you close the browser without first exiting the form, your session may hang.
You will notice this because you may not be able to recompile the same form, but will receive the error: FRM-30087: Unable to create form file. If this happens, you will need to open Task Manager and end the ifweb90 process manually.
Instructor Note
Please emphasize to students the correct way to exit a Forms session.
Whether or not a developer is able to recompile a form when that form is already running depends on the parameter OBR, which stands for one button run. In Forms 10g (9.0.4), this parameter defaults to YES, which turns off memory mapping so that the form stays open only while it is being loaded into process memory. When memory-mapped file I/O is in effect, the .fmx file stays open until the form is closed, so you cannot recompile. For a description of the OBR parameter, see Bug 2145774.

تلك الموضيع اصلية وقيمة جدأ وارجو لكم التوفيق