First of all, my apologies if this is in the wrong place or has been done already. I couldn't find this, so I did it myself. Apologies if I'm just retarded.
zdec.exe seems to show up as a virus in most antivirus software. Norton Antivirus was deleting it every three seconds, so I made a hex fix. I don't know if this fixes any other Antiviruses, but Norton no longer picks it up.
I tested it and it worked for me on a V1.0 OoT ROM.
Before I post the link NOTE that I did NOT make this exe file. this is the same exe that comes with UoT r10, I just mutilated the beginning of the file with HxD so Norton wouldn't pick it up.
yeah I was going to do that, but Norton wouldn't leave it alone for long enough for me to find the exceptions, so I got pissed at it and mangled, yes, the header. Thanks for that I was looking for that word last night. Sleep deprivation is bad for vocabulary.