I need some help from a Computer Specialist

The Rocketry Forum

Help Support The Rocketry Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
I got that changed, but all I get is a flash of a small window, then nothing.
Seams like it tries to open, then the door just slams shut.

This is, based on what you just said, the default application issue I explained earlier. No matter what you do, if the jar is set to acrobat it will not open.

You need to sort that out.
 
Woody,

Keep following Batmite instructions.

Do you know how much RAM you have?, possibly not enough, however if the computer is new and running Windows 10 you should be ok. If it is an old computer with an upgrade to Windows 10, RAM might be an issue.

Task Manager is a good tool to look at. You can also access it by doing the following:

Hold down Control and Atl, then tap Delete.
 
On my computer the java.exe that it points to is in the Program Files directory. In yours its you are trying to link to the one in the Program Files (x86) directory. I wonder if this is a 32bit versus 64bit Java version issue? Do you have a Java folder in the Program Files directory?
 
Ripjaws 8 gig mem

Woody,

Keep following Batmite instructions.

Do you know how much RAM you have?, possibly not enough, however if the computer is new and running Windows 10 you should be ok. If it is an old computer with an upgrade to Windows 10, RAM might be an issue.

Task Manager is a good tool to look at. You can also access it by doing the following:

Hold down Control and Atl, then tap Delete.
 
This sounds like an association problem.. Woody said it shows associated with Adobe.

It was a bug or virus, that happened to me once , with Adobe ... i remember that happening with a .mpg extension and it took some real work to get it cleared .. help online said to go to associations and clear or reassociate with another program .. but when you drilled down and got to that screen .. the button was greyed out and you couldnt click it

Kenny
 
yes, it's there too. Linked openrocket to that one too, and the same thing.
Just a flash of a window, then nothing.

On my computer the java.exe that it points to is in the Program Files directory. In yours its you are trying to link to the one in the Program Files (x86) directory. I wonder if this is a 32bit versus 64bit Java version issue? Do you have a Java folder in the Program Files directory?
 
Another fix that worked for me, just completely restart the whole thing. Delete OR, uninstall java, reboot. Try again from the beginning. A lot of times, you tweaked a setting accidentally that prevents the whole shebang from working.
 
The presence of Rocksim shouldn't have anything to do with it.
I'll see my brother in a couple days, I'll try and ask if he remembers what we did.
 
I still have a Windows Vista box and had trouble with OR as well.

I ended up making a batch file to launch it. If this works from a command prompt just put the command into a batch file:

"C:\Program Files\Java\jre7\bin\java.exe" -jar "OpenRocket v15.03.jar"

Adjust path to java.exe as needed and also name and location of the OR jar. My batch file is in same directory as OR jar.

Again this was my getting it to work on Vista but figured it may be worth a shot!
 
What is a batch file?

A batch file is essentially a text file but with a .bat extension instead of a .txt extension. So, to create it, copy the text dmgrime mentioned above into a new text file, save it, then rename it to, for example:
LaunchOR.bat

This is how I used to launch open rocket myself, but I swapped computers a while ago and never reinstalled it on the new platform.
 
I'm sure I use to know how to do that a long time ago when I learned dos, but it's long forgotten now.
I'd need a step by step, where to go, etc. to even try it now.
Was away, stripped a rocket after making some repairs.
Now off to prime it.

A batch file is essentially a text file but with a .bat extension instead of a .txt extension. So, to create it, copy the text dmgrime mentioned above into a new text file, save it, then rename it to, for example:
LaunchOR.bat

This is how I used to launch open rocket myself, but I swapped computers a while ago and never reinstalled it on the new platform.
 
From your windows 10 desktop, right click with the mouse in any open space. In the context menu that pops up, select New > and from the list of choices, select Text Document.

This will create a file called New Text Document.txt on your desktop.

Double click it, and it opens in Notepad.

Paste in the text:
"C:\Program Files\Java\jre7\bin\java.exe" -jar "OpenRocket v15.03.jar"

Note this assumes that your java is in the directory shown above, and that the openrocket jar file is in the same directory as your eventual batch file (currently, the desktop), and that it's named as above.

After pasting in the text, save the file, and close it.

Right click on this file (New Text Document.txt) and choose to rename it to whatever you want, but make sure it ends in .bat ... so LaunchOR.bat is an example.

Accept the renaming (windows will probably verify you really meant to rename it).

Double Click on the batch file and see if it works.
 
Question, do you have have 32 and java 64 installed? Having both can cause confusion in java apps and java itself.
 
Back
Top