diff --git a/wfassoc/src/extra/windows.rs b/wfassoc/src/extra/windows.rs
index 2175e05..0de5b6b 100644
--- a/wfassoc/src/extra/windows.rs
+++ b/wfassoc/src/extra/windows.rs
@@ -251,26 +251,33 @@ impl<I: Iterator<Item = char>> Iterator for CmdLexer<I> {
 
                     // Handle backslash
                     '\\' => {
-                        if let Some(pc) = self.chars.peek().copied() {
-                            match pc {
-                                '\\' => {
-                                    // Double backslash are treated as single backslash
-                                    self.chars.next();
-                                    token.push(pc);
-                                }
-                                '"' => {
-                                    // Backslash with an quote is interpreted as an literal quote
-                                    self.chars.next();
-                                    token.push(pc);
-                                }
-                                _ => {
-                                    // Treated as normal backslash
-                                    token.push(c);
-                                }
+                        // Eat backslash as much as possible and count it.
+                        let mut backslashes: usize = 1;
+                        while self.chars.peek().copied() == Some('\\') {
+                            self.chars.next();
+                            backslashes += 1;
+                        }
+
+                        if self.chars.peek().copied() == Some('"') {
+                            // Rule: backslashes before a double quote are special
+
+                            // consume the "
+                            let quote = self.chars.next().unwrap();
+
+                            // Even number: backslashes become half, quote is delimiter
+                            // Odd number: backslashes become half, quote is literal
+                            let num_slashes = backslashes / 2;
+                            let is_literal_quote = backslashes % 2 != 0;
+
+                            token.push_str(&"\\".repeat(num_slashes));
+                            if is_literal_quote {
+                                token.push(quote);
+                            } else {
+                                in_quotes = !in_quotes;
                             }
                         } else {
-                            // There is no more chars, treat it as normal.
-                            token.push(c);
+                            // Not followed by quote: treat all backslashes literally
+                            token.push_str(&"\\".repeat(backslashes));
                         }
                     }