Search columns and paste rows

Hi I have an excel spreadsheet with:
2 sheets,Sheet1 and Sheet2
4 columns (A,B,C,D)
100,000s of rows.

I need to search 3 columns, B,C and D, for particular values.
Column B needs to be = 0
Columns C and D need to be "<=0.1"

When all three criteria in the row are matched I need the value from column A in that row to be pasted to Sheet2 and then for the macro to continue searching the rows.

I have attached an extract of the data as the files size is too large to upload.