hmmm, interesting. Spark is a HotKeyToolKit from Shadowlab.org. I do not have it running, but when I start it, it does not give me the bmcapture process.
Google search does not give me answers (except my own question).
I just stopped the process, nothing seems to be affected. When I reboot, the process is running again. I deleted all the Login Items in Accounts, no change. I am puzzled.
You need to contact the developer. Additionally, since you're apparently doing development work, you should try the Unix and developer forums under OS X Technologies.