Having this darkcorps should not affect your ability to load from usb for most games. The only trouble you may encounter is an outdated ios, which is rare. In the case of an outdated ios, you can install the needed ios via dop-mii to play via disk/usb loader, or wait for the ios update to be incorporated into the darkcorp update, or do both. Regardless, most games will function both ways without to much issue.
Hackmii Installer- no support here from the authors
Trucha Bug Restorer- no support
cios38- no support
Hermes cios- no support
Usbloader gx and others- no support
- and so one
Acually I can't think of any app that is suported or sponsored on this site other than cIOSCORP/darkcorp.
I think that cIOSCROP is pretty well supported by out members and our staff. Take the following for expample
Dogeggs- is an excellent mod, and has written many guides. His 3.1-4.1 guide is know to include cIOSCROP as an optional addition to the modded wii. He was also kind enough to update wiihacks on 3.1, 3.2 versions, and 3.6 is linked into his guide
ShadowSonic2- also has provided this apps as optional in his 4.2 guide, and was kind enough to post the news regarding darkcorp
provided us with info on 3.5 and 3.6, straight for the source- which is kinda of nice I think.
I don't think there has every been a version of cIOSCORP that was not linked on this site in one forum or another. There is no doubt that it is endorsed in some small way in two of wiihacks most successful guides. So it is fair to say that some percentage of the wiihacks mods do support the use of cIOSCORP in some fashion.
I personally prefer usbloading over disk loading, but I do like the concept of booting recovery disks from RM without a modchip. Not much reason not to like that idea. It has its uses.
As always, if you muck up your wii in some stupid way, I will help you. Even if you installed cIOSCORP/darkcorp.