Were both created with the same bind key?
Do they both have the same file extension?
Yes I would say that both have the same FM extensions and bind key, how do I go about changing this two items?
Are they on Win or Mac? Are they in the same Runtime folder or separate folders?
Reason for not including Both in the Runtime?
My Runtime Links
About creating runtime solutions (FileMaker Pro Advanced)
Binding files into a runtime solution (FileMaker Pro Advanced)
Preparing files for a runtime solution (FileMaker Pro Advanced)
Distributing runtime solutions (FileMaker Pro Advanced)
Starting runtime solutions (FileMaker Pro Advanced)
Importing data into upgraded runtime solutions (FileMaker Pro Advanced)
Recovering runtime files (FileMaker Pro Advanced)
Using FileMaker 12 Runtime files with FileMaker Go 12 | HomeBase Software
Using FileMaker 12 Runtime FileMaker Go 12 - iPhone, Android, Windows 8, Surface
Convert Filemaker application to a Windows installer package
InnoIDE - CNET Download.com
FileMaker Run Time Solutions Download | Apps run on Mac - PC - iPad - iPhone
OnMybusinees Free FileMaker Starter Apps
WhiteBox - Packages
WSDOT - Forms Management - Electronic Forms Downloads
There are possible reasons for what you are experiencing, but I can't tell from here if any apply to your specific solutions:
1) Since both have the same file extension, double click either runtime database file will only launch the executable file for one of the two runtime solutions and this, in turn, will open the file bound to it.
2) Since both files have the same bind key, either executable file can open files from either solution. Should you have some kind of external data source reference that links to files in the other runtime folder, it could cause that file to open or a perform script step could even perform a script in the other file.
1) is much more likely to be the problem than 2). But if that's the cause of the issue, be careful to launch the runtimes by double clicking the executable file and not the database file bound to it and you should be able to open and use both run times at the same time.
A runtime is a Filemkaker file with the necessary files to run it wrapped around it, portions of the FIleMaker Pro code but not all of it as you can not create with it. Its purpose is to let people who don't have FileMaker open the files.
Times have changed and you can now buy an iPad for the cost of FileMaker Pro and Go is free...
The fmp file itself is not limited to the Runtime files but will only open with a specified Runtime setup of files.
You can open the files using FIleMaker Pro, if you have it, and if they have the same name, you might name them x-1 and x-2 for instance. Or use FileMaker Go on an iPad.