Winny is often called the "snakebite drug" for women -- how each responds to it is completely individual. Winny has more androgenous sides than say Anavar. Some women can have great results, some really experience strong sides. Men probably don't think of anavar as often as an option because it is more expensive than winny & the results are not as pronounced. So when asked about "what can I take to get lean like you" from wife / gf/ female friend, guys usually think of winny first.
Var has much lighter sides, less androgenous, much more predictable, wonderfully short half-life and generally a better choice for women.
Back to the request to post your wife's diet & training & goals. We are trying to reiterate that if your wife is going to look to taking steroids to "tone up", it is incredibly ignorant of her and of us to recommend a steroid if her diet & training are not up to par. Getting those things optimized with some patience & consistence will get her the same results w/o introducing the uncertainty and additional stress on her body of steroids.
Primary recommendation: don't put your wife on winny.
Secondary recommendation: dont' put your wife on any AAS if SHE doesn't understand what it is and takes responsibility for it herself -- she shoudln't leave it up to you to do all the research for her & just relay that info to her.
Tertiary recommendation: Let's look at her diet & training for suggested tweaks.
Quaternary recommendation: Get her to post up!