pdbaln() on windows and launching external programs

[Barry Grant]

As reported by Yu Lan:

I have download muscle from the website, rename it as "muscle", put it under the folder "c:\Program Files", so I used the code that

pdbs <- pdbaln(files,exefile="c:/Program Files/muscle.exe")

The result shows that Error in seqaln(s, id = files, ...) : Launching external program failed make sure 'c:/Program Files/muscle.exe' is in your search path In addition: Warning message: running command 'c:/Program Files/muscle.exe -version' had status 127

My computer is window 8 with 64 bit system.

[Barry Grant]

The solution from Xinqiu:

The space in the file path "Program Files" might cause the problem. Put the muscle program to a folder that the path doesn't contain any space or non alphabet numeric character and try it again.

This solved the problem.