Hi Iron mum, I would like to help you out with your future experience in protecting your PC from malicious software.
You see, sadly there are such things and rogue anti-spyware, or basically non-legit malicious anti-spyware. What these programs do is this.... yes, they scan your pc, yes they will remove malicious software from your pc, no they DO NOT clean your pc.
Spyware Detector is flagged as malicious software, by many reputable and trust worthy anti-spyware. Spybot S&D see it as malicious.
What do i mean by it does not clean your pc? Well, this particular program is flagged because it will install itself on your pc without you even realizing it! It than continues to clean other spyware off, but it also puts its own on there, which prompts popups and other things that make you want to buy their product, sadly, even after you spend the 30-50 dollars to purchase this product it continues to load your computer with crap. This is considered a smitfraud virus. I also know that smitfraudfix and roguefix both flag this program and spyware and will remove it.
I suggest
you READ and FOLLOW these instructions on properly removing Spyware Detector from your PC. My other suggestiong is to goto www.google.com and search for reviews for other programs you use, or if you would like to, post on here what you use and we can look over your programs and tell you if they are legit.
To answer your other quesiton, I would just not worry about Sisoftware, if you have to, run the installer, let it install, than download a program that I like to use called
Revo Uninstaller Use that to uninstall Sisoftware, it will completely remove it.
So now you have a good program to use for uninstalling unwanted software, stick to it, I do not like add or remove programs, alot of junk is left over.
So now you wish to use a good antispyware, well your in luck, it just so happens that one of the best Anti-Spyware programs out there is FREE. Please download and install
Spybot S&D.
And as for AntiSpyware, I suggest purchasing a version of
ESET NOD32 AntiVirus Home Edition, I have had a very pleasant and successful time with that program, and find it to be one of the best out there. If you wish to use FREEWARE, there are many that you can choose from.. you have
AVG AntiVirus which is legit and good but not the best, or there is
Avast! AntiVurs Free Home Edition.
Keep in mind these are all
IN MY OPINION, but if I were you, I would purchase a copy of NOD32.
Always research something before using it, or you could end up losing space, time, and money.