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# Starting Windows Jwdp

You should normally run Jwdw (blue J icon) as it has the following advantages over Jwdp:
1. supports OCX and OLE automation (not available in Jwdp)
2. starts quickly (Java is slow to start)
3. don't need to install/maintain Java Runtime Environment
4. is more stable (Jwdp is new and more likely to have bugs)
5. Java is a bit flakey compared to Win32
6. will run applications developed in Jwdp
7. develop apps for Jwdp by simply avoiding Windows only features
You may want to run Jwdp to see more closely how your application will look in Unix, or to check more carefully that it really is portable, or just because you are curious.
To run Jwdp you need to have the Java Runtime Environment or the Java SDK installed (version 1.4 or later, available at the Sun web site).
The easiest way to create a Jwdp icon is to make a copy of the blue J icon and then edit the properties as follows:
1. edit shortcut target to end in j.jar rather than j.exe
2. Change Icon to select the jr.ico in the J directory
One reason for this icon to fail is that the file assocation between jar and java is broken. You can fix the association, or try a shortcut target like:
c:\Program Files\Java\j2re1.4.0\bin\javaw.exe -jar c:\j503a\j.jar

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